#5BB1AB
Closest named color: Light Sea Green (#20B2AA). oklch(70.5% 0.084 189.5), rgb(91, 177, 171).
Aa
Black text reads best on this color (8.32:1).
About this color
#5BB1AB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.084 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.033 away. Black text reads best on it, at 8.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 8.32:1 |
| White text | 2.52:1 |
Values
| HEX | #5BB1AB |
| RGB | rgb(91, 177, 171) |
| HSL | hsl(176, 36%, 53%) |
| OKLCH | oklch(70.5% 0.084 189.5) |
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 #5BB1AB | 2.52:1 | Fails | Lc -54.4 | Large or bold text, headings |
| Black text on #5BB1AB | 8.32:1 | AAA | Lc 54.7 | Large or bold text, headings |
| #5BB1AB text on white | 2.52:1 | Fails | Lc 49.3 | Large or bold text, headings |
| #5BB1AB text on black | 8.32:1 | AAA | Lc -52.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C4E0DD
oklch(88.5% 0.03 188.8)
-
Step 300
300
#9ACCC8
oklch(80.9% 0.052 190)
-
Step 400
400 (this color)
#5BB1AB
oklch(70.5% 0.084 189.5)
-
Step 500
500
#0D9E97
oklch(63.1% 0.107 189.2)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#032D2B
oklch(26.9% 0.044 190)
#5BB1AB 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) | #A9A9AB | 0.090 |
| Deuteranopia (no green cones) | #9A9EAC | 0.084 |
| Tritanopia (no blue cones) | #2CB5AF | 0.028 |
| Achromatopsia (no color) | #A3A3A3 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB1AB
#5BB1AB
oklch(70.5% 0.084 189.5)
- #CE8A94
#CE8A94
oklch(70.5% 0.084 9.8)
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 #5BB1AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.033
- Topaz #13BBAF ΔE 0.040
- Greeny Blue #42B395 ΔE 0.041
- Turquoise Blue #06B1C4 ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.052
- Dull Teal #5F9E8F ΔE 0.057
- Greyblue #77A1B5 ΔE 0.058
- Bluegrey #85A3B2 ΔE 0.060
Use #5BB1AB 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.