#37A99A
Closest named color: Light Sea Green (#20B2AA). oklch(66.8% 0.103 182.7), rgb(55, 169, 154).
Aa
Black text reads best on this color (7.30:1).
About this color
#37A99A is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.103 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.029 away. Black text reads best on it, at 7.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.30:1 |
| White text | 2.87:1 |
Values
| HEX | #37A99A |
| RGB | rgb(55, 169, 154) |
| HSL | hsl(172, 51%, 44%) |
| OKLCH | oklch(66.8% 0.103 182.7) |
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 #37A99A | 2.87:1 | Fails | Lc -59.9 | Large or bold text, headings |
| Black text on #37A99A | 7.30:1 | AAA | Lc 49.4 | Large or bold text, headings |
| #37A99A text on white | 2.87:1 | Fails | Lc 54.6 | Large or bold text, headings |
| #37A99A text on black | 7.30:1 | AAA | Lc -47.2 | 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 500.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEB
oklch(93.6% 0.014 185.9)
-
Step 200
200
#C6E0DB
oklch(88.6% 0.028 182.8)
-
Step 300
300
#9DCCC3
oklch(80.9% 0.051 181.9)
-
Step 400
400
#62B1A5
oklch(70.6% 0.08 183.1)
-
Step 500
500 (this color)
#37A99A
oklch(66.8% 0.103 182.7)
-
Step 600
600
#008678
oklch(55.6% 0.1 182.2)
-
Step 700
700
#007165
oklch(49.2% 0.088 182.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#072D28
oklch(26.9% 0.043 182.5)
#37A99A 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) | #A19F99 | 0.109 |
| Deuteranopia (no green cones) | #91939B | 0.104 |
| Tritanopia (no blue cones) | #00ACA4 | 0.018 |
| Achromatopsia (no color) | #989898 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A99A
#37A99A
oklch(66.8% 0.103 182.7)
- #C9798F
#C9798F
oklch(66.8% 0.103 2.5)
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 #37A99A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.029
- Greeny Blue #42B395 ΔE 0.034
- Persian Green #2A9D8F ΔE 0.037
- Dull Teal #5F9E8F ΔE 0.038
- Grey Teal #5E9B8A ΔE 0.044
- Cadet Blue #5F9EA0 ΔE 0.045
- Sea #3C9992 ΔE 0.045
- Blue Green #0F9B8E ΔE 0.047
Use #37A99A 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.