#53C4FA

Closest named color: Vivid Sky Blue (#4CC9F0). oklch(77.7% 0.127 232.5), rgb(83, 196, 250).

Black text reads best on this color (10.64:1).

About this color

#53C4FA is a medium-light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.127 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.023 away. Black text reads best on it, at 10.64:1.

Hue family	Blues
Lightness	medium-light (78%)
Chroma	moderately saturated (0.127)
Temperature	cool
Nearest name	Vivid Sky Blue (#4CC9F0)
Black text	10.64:1
White text	1.97:1

Values

HEX	#53C4FA
RGB	rgb(83, 196, 250)
HSL	hsl(199, 94%, 65%)
OKLCH	oklch(77.7% 0.127 232.5)

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 #53C4FA	1.97:1	Fails	Lc -42.1	Non-text elements, placeholder text
Black text on #53C4FA	10.64:1	AAA	Lc 66.2	Content text, not long reading
#53C4FA text on white	1.97:1	Fails	Lc 37.8	Non-text elements, placeholder text
#53C4FA text on black	10.64:1	AAA	Lc -64.7	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

#EBF8FF

oklch(97.1% 0.017 230.9)
Step 100
100

#D3EFFF

oklch(93.7% 0.037 232.8)
Step 200
200

#ACE2FF

oklch(88.5% 0.068 232)
Step 300
300 (this color)

#53C4FA

oklch(77.7% 0.127 232.5)
Step 400
400

#00AEEB

oklch(70.6% 0.145 232.7)
Step 500
500

#0095CA

oklch(63% 0.13 232.7)
Step 600
600

#007EAB

oklch(55.7% 0.114 232.4)
Step 700
700

#006990

oklch(49% 0.101 232.9)
Step 800
800

#005677

oklch(42.6% 0.088 233.1)
Step 900
900

#004864

oklch(37.8% 0.078 232.8)
Step 950
950

#002B3D

oklch(27.1% 0.055 231.9)

Export this scale for Tailwind in the Tailwind colors tool

#53C4FA 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)	#A9C2FD	0.083
Deuteranopia (no green cones)	#92B1F9	0.071
Tritanopia (no blue cones)	#00D3D6	0.081
Achromatopsia (no color)	#B8B8B8	0.127