#2F7BBC

Closest named color: Windows Blue (#3778BF). oklch(56.7% 0.125 248.1), rgb(47, 123, 188).

Black text reads best on this color (4.68:1).

About this color

#2F7BBC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.125 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.011 away. Black text reads best on it, at 4.68:1.

Hue family	Blues
Lightness	medium-dark (57%)
Chroma	moderately saturated (0.125)
Temperature	cool
Nearest name	Windows Blue (#3778BF)
Black text	4.68:1
White text	4.48:1

Values

HEX	#2F7BBC
RGB	rgb(47, 123, 188)
HSL	hsl(208, 60%, 46%)
OKLCH	oklch(56.7% 0.125 248.1)

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 #2F7BBC	4.48:1	AA large text	Lc -76.3	Fine for body text
Black text on #2F7BBC	4.68:1	AA	Lc 33.3	Non-text elements, placeholder text
#2F7BBC text on white	4.48:1	AA large text	Lc 70.8	Content text, not long reading
#2F7BBC text on black	4.68:1	AA	Lc -30.9	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

#E2EBF4

oklch(93.6% 0.016 248)
Step 200
200

#CADBED

oklch(88.4% 0.031 249.7)
Step 300
300

#A5C5E4

oklch(81% 0.056 247.7)
Step 400
400

#73A6D6

oklch(70.8% 0.089 247.7)
Step 500
500

#4B8ECB

oklch(62.9% 0.115 248.1)
Step 600
600 (this color)

#2F7BBC

oklch(56.7% 0.125 248.1)
Step 700
700

#1D649F

oklch(49.1% 0.117 248.4)
Step 800
800

#1B5281

oklch(42.7% 0.097 248.3)
Step 900
900

#1D4467

oklch(37.6% 0.075 248.2)
Step 950
950

#12283C

oklch(26.9% 0.047 247.8)

Export this scale for Tailwind in the Tailwind colors tool

#2F7BBC 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)	#5D7EBF	0.046
Deuteranopia (no green cones)	#4971BB	0.032
Tritanopia (no blue cones)	#008B93	0.092
Achromatopsia (no color)	#777777	0.125