#519B8A

Closest named color: Grey Teal (#5E9B8A). oklch(63.7% 0.079 176.9), rgb(81, 155, 138).

Black text reads best on this color (6.40:1).

About this color

#519B8A is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.079 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.012 away. Black text reads best on it, at 6.40:1.

Hue family	Teals and cyans
Lightness	medium-light (64%)
Chroma	moderately saturated (0.079)
Temperature	cool
Nearest name	Grey Teal (#5E9B8A)
Black text	6.40:1
White text	3.27:1

Values

HEX	#519B8A
RGB	rgb(81, 155, 138)
HSL	hsl(166, 31%, 46%)
OKLCH	oklch(63.7% 0.079 176.9)

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 #519B8A	3.27:1	AA large text	Lc -65.4	Content text, not long reading
Black text on #519B8A	6.40:1	AA	Lc 44.1	Non-text elements, placeholder text
#519B8A text on white	3.27:1	AA large text	Lc 60.0	Large or bold text, headings
#519B8A text on black	6.40:1	AA	Lc -41.7	Non-text elements, placeholder text

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

#F2F7F5

oklch(97.2% 0.006 170.4)
Step 100
100

#E3ECEA

oklch(93.6% 0.01 181.4)
Step 200
200

#CBDED9

oklch(88.5% 0.021 178.3)
Step 300
300

#A7C9C0

oklch(80.8% 0.038 177.5)
Step 400
400

#76AEA0

oklch(70.8% 0.062 177)
Step 500
500 (this color)

#519B8A

oklch(63.7% 0.079 176.9)
Step 600
600

#2E8472

oklch(55.7% 0.086 176.5)
Step 700
700

#1F6F60

oklch(49% 0.079 177.6)
Step 800
800

#1D5B4E

oklch(42.8% 0.067 176.4)
Step 900
900

#1F4B41

oklch(37.8% 0.052 176.3)
Step 950
950

#132C26

oklch(27.1% 0.033 176.2)

Export this scale for Tailwind in the Tailwind colors tool

#519B8A 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)	#969389	0.083
Deuteranopia (no green cones)	#8A8A8B	0.080
Tritanopia (no blue cones)	#339D96	0.024
Achromatopsia (no color)	#8E8E8E	0.080