#539B8A
Closest named color: Grey Teal (#5E9B8A). oklch(63.7% 0.078 176.5), rgb(83, 155, 138).
Aa
Black text reads best on this color (6.42:1).
About this color
#539B8A is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.078 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.011 away. Black text reads best on it, at 6.42:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.42:1 |
| White text | 3.26:1 |
Values
| HEX | #539B8A |
| RGB | rgb(83, 155, 138) |
| HSL | hsl(166, 30%, 47%) |
| OKLCH | oklch(63.7% 0.078 176.5) |
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 #539B8A | 3.26:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #539B8A | 6.42:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #539B8A text on white | 3.26:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #539B8A text on black | 6.42:1 | AA | Lc -41.8 | 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
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CBDED9
oklch(88.5% 0.021 178.3)
-
Step 300
300
#A8C9C0
oklch(80.9% 0.038 177)
-
Step 400
400
#77AD9F
oklch(70.6% 0.061 176.5)
-
Step 500
500 (this color)
#539B8A
oklch(63.7% 0.078 176.5)
-
Step 600
600
#318372
oklch(55.5% 0.084 176.9)
-
Step 700
700
#226F5F
oklch(49.1% 0.079 176.2)
-
Step 800
800
#1F5B4E
oklch(42.8% 0.065 176.1)
-
Step 900
900
#204A41
oklch(37.6% 0.05 177.5)
-
Step 950
950
#142C26
oklch(27.1% 0.032 175.7)
#539B8A 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 | 0.081 |
| Deuteranopia (no green cones) | #8A8B8B | 0.076 |
| Tritanopia (no blue cones) | #379D96 | 0.024 |
| Achromatopsia (no color) | #8E8E8E | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #539B8A
#539B8A
oklch(63.7% 0.078 176.5)
- #B2788C
#B2788C
oklch(63.8% 0.077 357.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #539B8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.011
- Dull Teal #5F9E8F ΔE 0.017
- Sea #3C9992 ΔE 0.023
- Persian Green #2A9D8F ΔE 0.027
- Dusty Teal #4C9085 ΔE 0.034
- Cadet Blue #5F9EA0 ΔE 0.036
- Blue Green #0F9B8E ΔE 0.036
- Ocean Green #3D9973 ΔE 0.041
Use #539B8A in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.