#357EB7

Closest named color: Steel Blue (#4682B4). oklch(57.4% 0.114 245.4), rgb(53, 126, 183).

Black text reads best on this color (4.81:1).

About this color

#357EB7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.114 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.020 away. Black text reads best on it, at 4.81:1.

Hue family	Blues
Lightness	medium-dark (57%)
Chroma	moderately saturated (0.114)
Temperature	cool
Nearest name	Steel Blue (#4682B4)
Black text	4.81:1
White text	4.35:1

Values

HEX	#357EB7
RGB	rgb(53, 126, 183)
HSL	hsl(206, 55%, 46%)
OKLCH	oklch(57.4% 0.114 245.4)

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 #357EB7	4.35:1	AA large text	Lc -75.4	Fine for body text
Black text on #357EB7	4.81:1	AA	Lc 34.2	Non-text elements, placeholder text
#357EB7 text on white	4.35:1	AA large text	Lc 69.9	Content text, not long reading
#357EB7 text on black	4.81:1	AA	Lc -31.8	Non-text elements, placeholder text

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

#F2F6FA

oklch(97.1% 0.007 247.9)
Step 100
100

#E2EBF3

oklch(93.6% 0.015 244.7)
Step 200
200

#CADCEB

oklch(88.6% 0.028 243.1)
Step 300
300

#A6C5E0

oklch(81% 0.051 244.8)
Step 400
400

#75A6D1

oklch(70.7% 0.082 245.8)
Step 500
500

#4F8FC5

oklch(63% 0.105 246)
Step 600
600 (this color)

#357EB7

oklch(57.4% 0.114 245.4)
Step 700
700

#216599

oklch(49.1% 0.107 245.9)
Step 800
800

#1E537C

oklch(42.8% 0.088 245.5)
Step 900
900

#1F4563

oklch(37.8% 0.067 244.8)
Step 950
950

#13283A

oklch(26.9% 0.043 246.2)

Export this scale for Tailwind in the Tailwind colors tool

#357EB7 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)	#6480B9	0.048
Deuteranopia (no green cones)	#5273B6	0.037
Tritanopia (no blue cones)	#008C92	0.083
Achromatopsia (no color)	#797979	0.114