Dodger Blue

Conversion

The same colour in each notation. OKLCH is the one to reach for when you intend to modify it, because its lightness axis is perceptually uniform and its three components are genuinely independent.

HEX

#1E90FF

RGB

rgb(30 144 255)

OKLCH

oklch(65.2% 0.190 253.2)

Contrast and accessibility

What this colour passes as text, and — where it fails — the nearest colour that would pass while holding the same hue.

APCA scores it Lc 59 as 16px regular text on white. That is below the threshold for body copy at that size, even where the WCAG ratio passes.

Using Dodger Blue

In OKLCH terms this is a blue at 65% lightness and 0.19 chroma. Lightness is what decides every verdict below, which is why a colour can be perfect as a fill and unusable as the text on top of it.

• Body text on white3.23:1 is under the 4.5:1 minimum.no
• Body text on black6.48:1 clears the 4.5:1 minimum.yes
• Large text or headingsLarge text needs only 3:1, and this reaches 6.48:1 against black.yes
• Borders, icons and controlsClears the 3:1 that WCAG 1.4.11 asks of anything needed to identify a control.yes
• A background for white textWhite on this colour is 3.23:1.no

None of this makes a design accessible on its own. Contrast is one success criterion among many, and WCAG 1.4.1 separately requires that colour is never the only way information is conveyed — so if Dodger Blue is carrying meaning here, give it a label or an icon as well.

Closest named colours

Ranked by CIEDE2000 perceptual distance, not by hex proximity. Two hex codes can look almost identical and sit far apart numerically, and the reverse.

• Cornflower BlueΔE 5.5
• Steel BlueΔE 8.4
• Royal BlueΔE 14.9
• Light Slate GrayΔE 15.0
• Slate GrayΔE 16.2

Tints and shades

The same hue at eleven lightness steps, spaced evenly in OKLCH so they look evenly spaced. This is the family you would build a design system from.

Colour harmonies

Hue rotations around Dodger Blue, computed in OKLCH so every colour in a set holds the same perceived lightness — which is what a harmony is supposed to mean and what the same rotation in HSL fails to deliver.

Colour vision

How Dodger Blue appears under each simulated deficiency, using the Machado model applied to linear RGB.