#37CEAD
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.6% 0.132 174.3), rgb(55, 206, 173).
Aa
Black text reads best on this color (10.59:1).
About this color
#37CEAD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.132 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.027 away. Black text reads best on it, at 10.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.59:1 |
| White text | 1.98:1 |
Values
| HEX | #37CEAD |
| RGB | rgb(55, 206, 173) |
| HSL | hsl(167, 61%, 51%) |
| OKLCH | oklch(76.6% 0.132 174.3) |
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 #37CEAD | 1.98:1 | Fails | Lc -42.3 | Non-text elements, placeholder text |
| Black text on #37CEAD | 10.59:1 | AAA | Lc 66.0 | Content text, not long reading |
| #37CEAD text on white | 1.98:1 | Fails | Lc 37.9 | Non-text elements, placeholder text |
| #37CEAD text on black | 10.59:1 | AAA | Lc -64.5 | Content text, not long reading |
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
#EAFAF4
oklch(97.2% 0.019 171.5)
-
Step 100
100
#D1F3E8
oklch(93.7% 0.038 173.9)
-
Step 200
200
#A6EAD6
oklch(88.6% 0.074 174.3)
-
Step 300
300 (this color)
#37CEAD
oklch(76.6% 0.132 174.3)
-
Step 400
400
#00BB9B
oklch(70.7% 0.134 174.5)
-
Step 500
500
#00A084
oklch(63% 0.119 174.3)
-
Step 600
600
#00876F
oklch(55.6% 0.106 174.3)
-
Step 700
700
#00715D
oklch(49% 0.093 174.7)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#37CEAD 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) | #C7C1AB | 0.138 |
| Deuteranopia (no green cones) | #B3B2AF | 0.132 |
| Tritanopia (no blue cones) | #00D0C4 | 0.031 |
| Achromatopsia (no color) | #B8B8B8 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37CEAD
#37CEAD
oklch(76.6% 0.132 174.3)
- #F48EB8
#F48EB8
oklch(76.6% 0.132 354.5)
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 #37CEAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.027
- Emerald #06D6A0 ΔE 0.035
- Medium Turquoise #48D1CC ΔE 0.046
- Seafoam Blue #78D1B6 ΔE 0.049
- Greenblue #23C48B ΔE 0.051
- Dark Turquoise #00CED1 ΔE 0.052
- Pale Teal #82CBB2 ΔE 0.055
- Green Blue #01C08D ΔE 0.057
Use #37CEAD 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.