#576BB4

Closest named color: French Blue (#436BAD). oklch(54.6% 0.116 270.6), rgb(87, 107, 180).

White text reads best on this color (5.03:1).

About this color

#576BB4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.116 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.027 away. White text reads best on it, at 5.03:1.

Hue family	Blues
Lightness	medium-dark (55%)
Chroma	moderately saturated (0.116)
Temperature	cool
Nearest name	French Blue (#436BAD)
Black text	4.16:1
White text	5.03:1

Values

HEX	#576BB4
RGB	rgb(87, 107, 180)
HSL	hsl(227, 38%, 52%)
OKLCH	oklch(54.6% 0.116 270.6)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

Pair	WCAG 2	Result	APCA	APCA guidance
White text on #576BB4	5.03:1	AA	Lc -80.1	Fine for body text
Black text on #576BB4	4.16:1	AA large text	Lc 29.4	Dividers and decoration only
#576BB4 text on white	5.03:1	AA	Lc 74.7	Content text, not long reading
#576BB4 text on black	4.16:1	AA large text	Lc -27.0	Dividers and decoration only

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.

Step 50
50

#F3F5FA

oklch(97% 0.007 268.5)
Step 100
100

#E6EAF4

oklch(93.7% 0.014 268.5)
Step 200
200

#D2D9ED

oklch(88.6% 0.029 270.4)
Step 300
300

#B4C0E3

oklch(81% 0.051 270.3)
Step 400
400

#8D9ED6

oklch(70.7% 0.085 271.1)
Step 500
500

#7185CA

oklch(63% 0.107 270.8)
Step 600
600 (this color)

#576BB4

oklch(54.6% 0.116 270.6)
Step 700
700

#4A5C9E

oklch(49.2% 0.108 270.5)
Step 800
800

#3D4B80

oklch(42.7% 0.09 271)
Step 900
900

#343F67

oklch(37.8% 0.07 271.1)
Step 950
950

#1E253C

oklch(27% 0.044 270.3)

Export this scale for Tailwind in the Tailwind colors tool

#576BB4 with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

Vision	Seen as	Shift (ΔE)
Protanopia (no red cones)	#4E73B7	0.023
Deuteranopia (no green cones)	#446BB2	0.023
Tritanopia (no blue cones)	#2E7B87	0.104
Achromatopsia (no color)	#6F6F6F	0.117