#28CBF5

Closest named color: Bright Sky Blue (#02CCFE). oklch(78.2% 0.136 221), rgb(40, 203, 245).

Black text reads best on this color (10.95:1).

About this color

#28CBF5 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.136 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Sky Blue (#02CCFE), ΔE 0.013 away. Black text reads best on it, at 10.95:1.

Hue family	Teals and cyans
Lightness	light (78%)
Chroma	moderately saturated (0.136)
Temperature	cool
Nearest name	Bright Sky Blue (#02CCFE)
Black text	10.95:1
White text	1.91:1

Values

HEX	#28CBF5
RGB	rgb(40, 203, 245)
HSL	hsl(192, 91%, 56%)
OKLCH	oklch(78.2% 0.136 221)

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 #28CBF5	1.91:1	Fails	Lc -40.4	Non-text elements, placeholder text
Black text on #28CBF5	10.95:1	AAA	Lc 67.8	Content text, not long reading
#28CBF5 text on white	1.91:1	Fails	Lc 36.1	Non-text elements, placeholder text
#28CBF5 text on black	10.95:1	AAA	Lc -66.4	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

#E9F9FE

oklch(97.2% 0.018 218.4)
Step 100
100

#CEF1FD

oklch(93.7% 0.04 220.5)
Step 200
200

#A0E5FD

oklch(88.4% 0.076 221.7)
Step 300
300 (this color)

#28CBF5

oklch(78.2% 0.136 221)
Step 400
400

#00B2D9

oklch(70.7% 0.13 221)
Step 500
500

#0099BA

oklch(63.2% 0.115 220.3)
Step 600
600

#00809D

oklch(55.6% 0.102 221.1)
Step 700
700

#006C84

oklch(49.2% 0.09 220.2)
Step 800
800

#00586D

oklch(42.6% 0.078 221.3)
Step 900
900

#00495B

oklch(37.6% 0.069 221.4)
Step 950
950

#002C37

oklch(27.1% 0.049 219.4)

Export this scale for Tailwind in the Tailwind colors tool

#28CBF5 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)	#B2C6F7	0.111
Deuteranopia (no green cones)	#98B3F5	0.099
Tritanopia (no blue cones)	#00D8D9	0.063
Achromatopsia (no color)	#BBBBBB	0.137