#37E2DC
Closest named color: Turquoise (#40E0D0). oklch(82.9% 0.133 191.3), rgb(55, 226, 220).
Aa
Black text reads best on this color (13.07:1).
About this color
#37E2DC is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.133 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.016 away. Black text reads best on it, at 13.07:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 13.07:1 |
| White text | 1.60:1 |
Values
| HEX | #37E2DC |
| RGB | rgb(55, 226, 220) |
| HSL | hsl(178, 75%, 55%) |
| OKLCH | oklch(82.9% 0.133 191.3) |
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 #37E2DC | 1.60:1 | Fails | Lc -30.3 | Non-text elements, placeholder text |
| Black text on #37E2DC | 13.07:1 | AAA | Lc 77.0 | Fine for body text |
| #37E2DC text on white | 1.60:1 | Fails | Lc 26.8 | Dividers and decoration only |
| #37E2DC text on black | 13.07:1 | AAA | Lc -76.2 | Fine for body 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 300.
-
Step 50
50
#E9FAF8
oklch(97.2% 0.018 188.4)
-
Step 100
100
#CEF3F0
oklch(93.7% 0.039 190.5)
-
Step 200
200
#9FE9E5
oklch(88.5% 0.073 191.6)
-
Step 300
300 (this color)
#37E2DC
oklch(82.9% 0.133 191.3)
-
Step 400
400
#00B8B3
oklch(70.7% 0.122 191.3)
-
Step 500
500
#009E99
oklch(63.1% 0.109 190.8)
-
Step 600
600
#008581
oklch(55.7% 0.096 191.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005B59
oklch(42.6% 0.073 192.2)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#37E2DC 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) | #D4D6DC | 0.139 |
| Deuteranopia (no green cones) | #BCC5DD | 0.130 |
| Tritanopia (no blue cones) | #00E8E0 | 0.017 |
| Achromatopsia (no color) | #CCCCCC | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37E2DC
#37E2DC
oklch(82.9% 0.133 191.3)
- #FFADB7
#FFADB7
oklch(82.9% 0.097 11.4)
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 #37E2DC, closest first.
No curated palette has a color within ΔE 0.04 of #37E2DC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.016
- Aqua Blue #02D8E9 ΔE 0.040
- Medium Turquoise #48D1CC ΔE 0.046
- Aqua Marine #2EE8BB ΔE 0.055
- Dark Turquoise #00CED1 ΔE 0.059
- Bright Aqua #0BF9EA ΔE 0.060
- Seafoam Blue #78D1B6 ΔE 0.062
- Bright Light Blue #26F7FD ΔE 0.063
Use #37E2DC 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.