#5B9689
Closest named color: Grey Teal (#5E9B8A). oklch(62.9% 0.065 178.4), rgb(91, 150, 137).
Aa
Black text reads best on this color (6.16:1).
About this color
#5B9689 is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.065 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.015 away. Black text reads best on it, at 6.16:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.16:1 |
| White text | 3.40:1 |
Values
| HEX | #5B9689 |
| RGB | rgb(91, 150, 137) |
| HSL | hsl(167, 24%, 47%) |
| OKLCH | oklch(62.9% 0.065 178.4) |
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 #5B9689 | 3.40:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #5B9689 | 6.16:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #5B9689 text on white | 3.40:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #5B9689 text on black | 6.16:1 | AA | Lc -40.2 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CDDDD9
oklch(88.4% 0.018 179.3)
-
Step 300
300
#ACC8C1
oklch(81% 0.032 178.7)
-
Step 400
400
#7EABA1
oklch(70.6% 0.051 179.5)
-
Step 500
500 (this color)
#5B9689
oklch(62.9% 0.065 178.4)
-
Step 600
600
#3F8174
oklch(55.6% 0.071 179)
-
Step 700
700
#316D61
oklch(49.1% 0.066 178.5)
-
Step 800
800
#2A594F
oklch(42.8% 0.054 177.9)
-
Step 900
900
#274942
oklch(37.7% 0.042 179.2)
-
Step 950
950
#172B26
oklch(27% 0.028 176.4)
#5B9689 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) | #928F88 | 0.070 |
| Deuteranopia (no green cones) | #87888A | 0.065 |
| Tritanopia (no blue cones) | #479892 | 0.020 |
| Achromatopsia (no color) | #8B8B8B | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B9689
#5B9689
oklch(62.9% 0.065 178.4)
- #AA7888
#AA7888
oklch(62.8% 0.066 358.3)
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 #5B9689, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.015
- Dull Teal #5F9E8F ΔE 0.024
- Dusty Teal #4C9085 ΔE 0.025
- Sea #3C9992 ΔE 0.026
- Cadet Blue #5F9EA0 ΔE 0.037
- Persian Green #2A9D8F ΔE 0.037
- Slate Green #658D6D ΔE 0.040
- Green Grey #77926F ΔE 0.043
Use #5B9689 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.