#519ADA

Closest named color: Chefchaouen Blue (#4895EF). oklch(66.7% 0.12 247.2), rgb(81, 154, 218).

Black text reads best on this color (6.98:1).

About this color

#519ADA is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.120 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.038 away. Black text reads best on it, at 6.98:1.

Hue family	Blues
Lightness	medium-light (67%)
Chroma	moderately saturated (0.120)
Temperature	cool
Nearest name	Chefchaouen Blue (#4895EF)
Black text	6.98:1
White text	3.00:1

Values

HEX	#519ADA
RGB	rgb(81, 154, 218)
HSL	hsl(208, 65%, 59%)
OKLCH	oklch(66.7% 0.12 247.2)

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 #519ADA	3.00:1	AA large text	Lc -61.9	Content text, not long reading
Black text on #519ADA	6.98:1	AA	Lc 47.5	Large or bold text, headings
#519ADA text on white	3.00:1	AA large text	Lc 56.5	Large or bold text, headings
#519ADA text on black	6.98:1	AA	Lc -45.2	Large or bold text, headings

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

#C9DCEE

oklch(88.6% 0.032 246.7)
Step 300
300

#A3C5E5

oklch(80.9% 0.058 247)
Step 400
400

#6FA6D8

oklch(70.7% 0.094 247)
Step 500
500 (this color)

#519ADA

oklch(66.7% 0.12 247.2)
Step 600
600

#2278BB

oklch(55.6% 0.131 247.1)
Step 700
700

#1264A1

oklch(49% 0.122 247.4)
Step 800
800

#145283

oklch(42.7% 0.101 247.5)
Step 900
900

#194469

oklch(37.6% 0.079 247.8)
Step 950
950

#10283D

oklch(26.9% 0.05 247.3)

Export this scale for Tailwind in the Tailwind colors tool

#519ADA 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)	#7E9CDD	0.049
Deuteranopia (no green cones)	#6C8FD9	0.037
Tritanopia (no blue cones)	#00A9B0	0.094
Achromatopsia (no color)	#959595	0.120