#64AAD2

Closest named color: Greyblue (#77A1B5). oklch(70.7% 0.092 235.2), rgb(100, 170, 210).

Black text reads best on this color (8.22:1).

About this color

#64AAD2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.092 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.044 away. Black text reads best on it, at 8.22:1.

Hue family	Blues
Lightness	medium-light (71%)
Chroma	moderately saturated (0.092)
Temperature	cool
Nearest name	Greyblue (#77A1B5)
Black text	8.22:1
White text	2.55:1

Values

HEX	#64AAD2
RGB	rgb(100, 170, 210)
HSL	hsl(202, 55%, 61%)
OKLCH	oklch(70.7% 0.092 235.2)

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 #64AAD2	2.55:1	Fails	Lc -55.0	Large or bold text, headings
Black text on #64AAD2	8.22:1	AAA	Lc 54.1	Large or bold text, headings
#64AAD2 text on white	2.55:1	Fails	Lc 49.9	Large or bold text, headings
#64AAD2 text on black	8.22:1	AAA	Lc -52.1	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 400.

Step 50
50

#F1F6FA

oklch(97.1% 0.008 241.7)
Step 100
100

#E0ECF4

oklch(93.6% 0.017 236.7)
Step 200
200

#C6DDEC

oklch(88.5% 0.032 236.4)
Step 300
300

#9DC7E1

oklch(80.8% 0.058 235.6)
Step 400
400 (this color)

#64AAD2

oklch(70.7% 0.092 235.2)
Step 500
500

#2F94C6

oklch(63.2% 0.117 235)
Step 600
600

#007DAE

oklch(55.7% 0.118 234.9)
Step 700
700

#006993

oklch(49.2% 0.104 234.9)
Step 800
800

#005679

oklch(42.8% 0.09 234.7)
Step 900
900

#074764

oklch(37.6% 0.076 235.3)
Step 950
950

#092A3B

oklch(27.1% 0.049 235.4)

Export this scale for Tailwind in the Tailwind colors tool

#64AAD2 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)	#97A9D4	0.058
Deuteranopia (no green cones)	#889DD1	0.050
Tritanopia (no blue cones)	#1FB5B7	0.072
Achromatopsia (no color)	#A2A2A2	0.092