#63DAE4

Closest named color: Aqua Blue (#02D8E9). oklch(82.4% 0.107 202.8), rgb(99, 218, 228).

Black text reads best on this color (12.67:1).

About this color

#63DAE4 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.107 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.036 away. Black text reads best on it, at 12.67:1.

Hue family	Teals and cyans
Lightness	light (82%)
Chroma	moderately saturated (0.107)
Temperature	cool
Nearest name	Aqua Blue (#02D8E9)
Black text	12.67:1
White text	1.65:1

Values

HEX	#63DAE4
RGB	rgb(99, 218, 228)
HSL	hsl(185, 70%, 64%)
OKLCH	oklch(82.4% 0.107 202.8)

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 #63DAE4	1.65:1	Fails	Lc -32.4	Non-text elements, placeholder text
Black text on #63DAE4	12.67:1	AAA	Lc 75.1	Fine for body text
#63DAE4 text on white	1.65:1	Fails	Lc 28.7	Dividers and decoration only
#63DAE4 text on black	12.67:1	AAA	Lc -74.2	Content text, not long reading

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 300.

Step 50
50

#EBF9FA

oklch(97.2% 0.015 202.1)
Step 100
100

#D3F0F3

oklch(93.5% 0.031 204.2)
Step 200
200

#ABE5EA

oklch(88.4% 0.059 202.8)
Step 300
300 (this color)

#63DAE4

oklch(82.4% 0.107 202.8)
Step 400
400

#00B6C1

oklch(70.7% 0.12 202.5)
Step 500
500

#009CA6

oklch(63.1% 0.107 202.8)
Step 600
600

#00838C

oklch(55.6% 0.095 203.3)
Step 700
700

#006E76

oklch(49.1% 0.084 203.6)
Step 800
800

#005A60

oklch(42.6% 0.073 202.7)
Step 900
900

#004B51

oklch(37.6% 0.064 204)
Step 950
950

#002D30

oklch(27% 0.046 201.8)

Export this scale for Tailwind in the Tailwind colors tool

#63DAE4 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)	#CBD2E5	0.107
Deuteranopia (no green cones)	#B7C3E5	0.099
Tritanopia (no blue cones)	#00E2DD	0.042
Achromatopsia (no color)	#C9C9C9	0.108