#37C0BF
Closest named color: Topaz (#13BBAF). oklch(73.7% 0.113 194.2), rgb(55, 192, 191).
Aa
Black text reads best on this color (9.45:1).
About this color
#37C0BF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.113 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.029 away. Black text reads best on it, at 9.45:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.45:1 |
| White text | 2.22:1 |
Values
| HEX | #37C0BF |
| RGB | rgb(55, 192, 191) |
| HSL | hsl(180, 55%, 48%) |
| OKLCH | oklch(73.7% 0.113 194.2) |
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 #37C0BF | 2.22:1 | Fails | Lc -48.1 | Large or bold text, headings |
| Black text on #37C0BF | 9.45:1 | AAA | Lc 60.6 | Content text, not long reading |
| #37C0BF text on white | 2.22:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #37C0BF text on black | 9.45:1 | AAA | Lc -58.8 | 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
#EFF8F7
oklch(97.2% 0.01 189.1)
-
Step 100
100
#DBEEEE
oklch(93.5% 0.02 196.8)
-
Step 200
200
#BCE2E1
oklch(88.5% 0.04 194.5)
-
Step 300
300
#89CFCE
oklch(80.8% 0.07 194.7)
-
Step 400
400 (this color)
#37C0BF
oklch(73.7% 0.113 194.2)
-
Step 500
500
#009D9D
oklch(63% 0.108 194.8)
-
Step 600
600
#008484
oklch(55.5% 0.095 194.8)
-
Step 700
700
#006F6F
oklch(49% 0.084 194.8)
-
Step 800
800
#005B5B
oklch(42.7% 0.073 194.8)
-
Step 900
900
#004C4C
oklch(37.7% 0.064 194.8)
-
Step 950
950
#002D2D
oklch(26.9% 0.046 194.8)
#37C0BF 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) | #B4B6BF | 0.119 |
| Deuteranopia (no green cones) | #9FA8C0 | 0.110 |
| Tritanopia (no blue cones) | #00C6BF | 0.020 |
| Achromatopsia (no color) | #AEAEAE | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37C0BF
#37C0BF
oklch(73.7% 0.113 194.2)
- #E88B94
#E88B94
oklch(73.7% 0.114 14)
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 #37C0BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.029
- Dark Turquoise #00CED1 ΔE 0.040
- Light Sea Green #20B2AA ΔE 0.047
- Medium Turquoise #48D1CC ΔE 0.050
- Turquoise Blue #06B1C4 ΔE 0.050
- Greeny Blue #42B395 ΔE 0.061
- Medium Aquamarine #66CDAA ΔE 0.063
- Pale Teal #82CBB2 ΔE 0.071
Use #37C0BF 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.