#3B88CA

Closest named color: Water Blue (#0E87CC). oklch(60.9% 0.126 247.6), rgb(59, 136, 202).

Black text reads best on this color (5.56:1).

About this color

#3B88CA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.126 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.021 away. Black text reads best on it, at 5.56:1.

Hue family	Blues
Lightness	medium-dark (61%)
Chroma	moderately saturated (0.126)
Temperature	cool
Nearest name	Water Blue (#0E87CC)
Black text	5.56:1
White text	3.77:1

Values

HEX	#3B88CA
RGB	rgb(59, 136, 202)
HSL	hsl(208, 57%, 51%)
OKLCH	oklch(60.9% 0.126 247.6)

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 #3B88CA	3.77:1	AA large text	Lc -70.5	Content text, not long reading
Black text on #3B88CA	5.56:1	AA	Lc 39.1	Non-text elements, placeholder text
#3B88CA text on white	3.77:1	AA large text	Lc 65.0	Content text, not long reading
#3B88CA text on black	5.56:1	AA	Lc -36.7	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 500.

Step 50
50

#F1F6FB

oklch(97.1% 0.009 247.9)
Step 100
100

#E1EBF5

oklch(93.5% 0.017 248)
Step 200
200

#C8DCEF

oklch(88.5% 0.034 246.8)
Step 300
300

#A2C5E7

oklch(80.9% 0.061 247.8)
Step 400
400

#6DA6DB

oklch(70.7% 0.098 247.6)
Step 500
500 (this color)

#3B88CA

oklch(60.9% 0.126 247.6)
Step 600
600

#1B78BE

oklch(55.7% 0.136 247.2)
Step 700
700

#0964A4

oklch(49% 0.127 247.6)
Step 800
800

#0F5285

oklch(42.7% 0.105 247.5)
Step 900
900

#17446B

oklch(37.7% 0.083 248.3)
Step 950
950

#0F283E

oklch(26.9% 0.052 247.6)

Export this scale for Tailwind in the Tailwind colors tool

#3B88CA 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)	#6A8BCD	0.048
Deuteranopia (no green cones)	#567DC9	0.035
Tritanopia (no blue cones)	#0098A0	0.093
Achromatopsia (no color)	#838383	0.126