#37AA8B
Closest named color: Greeny Blue (#42B395). oklch(66.6% 0.112 171.3), rgb(55, 170, 139).
Aa
Black text reads best on this color (7.28:1).
About this color
#37AA8B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.112 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.029 away. Black text reads best on it, at 7.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.28:1 |
| White text | 2.88:1 |
Values
| HEX | #37AA8B |
| RGB | rgb(55, 170, 139) |
| HSL | hsl(164, 51%, 44%) |
| OKLCH | oklch(66.6% 0.112 171.3) |
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 #37AA8B | 2.88:1 | Fails | Lc -60.0 | Content text, not long reading |
| Black text on #37AA8B | 7.28:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #37AA8B text on white | 2.88:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #37AA8B text on black | 7.28:1 | AAA | Lc -47.1 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDE8
oklch(93.5% 0.015 171)
-
Step 200
200
#C6E0D6
oklch(88.5% 0.031 170.5)
-
Step 300
300
#9DCDBC
oklch(81% 0.056 171.1)
-
Step 400
400
#63B399
oklch(70.8% 0.089 170.6)
-
Step 500
500 (this color)
#37AA8B
oklch(66.6% 0.112 171.3)
-
Step 600
600
#00876B
oklch(55.5% 0.108 171.4)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#014E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#072E23
oklch(27.1% 0.048 170)
#37AA8B 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) | #A59F89 | 0.115 |
| Deuteranopia (no green cones) | #95938D | 0.111 |
| Tritanopia (no blue cones) | #00ABA1 | 0.033 |
| Achromatopsia (no color) | #989898 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37AA8B
#37AA8B
oklch(66.6% 0.112 171.3)
- #C8769C
#C8769C
oklch(66.6% 0.112 351.3)
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 #37AA8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.029
- Jade #1FA774 ΔE 0.036
- Dark Seafoam Green #3EAF76 ΔE 0.037
- Bluey Green #2BB179 ΔE 0.038
- Tea #65AB7C ΔE 0.038
- Persian Green #2A9D8F ΔE 0.043
- Light Sea Green #20B2AA ΔE 0.043
- Dull Teal #5F9E8F ΔE 0.046
Use #37AA8B 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.