#37BF9B
Closest named color: Green Blue (#01C08D). oklch(72.4% 0.127 171), rgb(55, 191, 155).
Aa
Black text reads best on this color (9.08:1).
About this color
#37BF9B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.127 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Green Blue (#01C08D), ΔE 0.027 away. Black text reads best on it, at 9.08:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Green Blue (#01C08D) |
| Black text | 9.08:1 |
| White text | 2.31:1 |
Values
| HEX | #37BF9B |
| RGB | rgb(55, 191, 155) |
| HSL | hsl(164, 55%, 48%) |
| OKLCH | oklch(72.4% 0.127 171) |
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 #37BF9B | 2.31:1 | Fails | Lc -50.0 | Large or bold text, headings |
| Black text on #37BF9B | 9.08:1 | AAA | Lc 58.8 | Large or bold text, headings |
| #37BF9B text on white | 2.31:1 | Fails | Lc 45.2 | Large or bold text, headings |
| #37BF9B text on black | 9.08:1 | AAA | Lc -56.9 | 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
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DCEFE8
oklch(93.6% 0.022 171.8)
-
Step 200
200
#BDE3D5
oklch(88.5% 0.044 170.9)
-
Step 300
300
#8BD2BA
oklch(81% 0.079 171)
-
Step 400
400 (this color)
#37BF9B
oklch(72.4% 0.127 171)
-
Step 500
500
#00A17F
oklch(63.1% 0.124 170.8)
-
Step 600
600
#00876B
oklch(55.5% 0.108 171.4)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#002F23
oklch(27.2% 0.053 170.5)
#37BF9B 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) | #B9B299 | 0.130 |
| Deuteranopia (no green cones) | #A7A59D | 0.124 |
| Tritanopia (no blue cones) | #00C1B5 | 0.036 |
| Achromatopsia (no color) | #AAAAAA | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37BF9B
#37BF9B
oklch(72.4% 0.127 171)
- #E183AF
#E183AF
oklch(72.3% 0.126 351.2)
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 #37BF9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Blue #01C08D ΔE 0.027
- Greenblue #23C48B ΔE 0.032
- Greeny Blue #42B395 ΔE 0.033
- Topaz #13BBAF ΔE 0.035
- Dark Seafoam #1FB57A ΔE 0.051
- Light Sea Green #20B2AA ΔE 0.051
- Bluey Green #2BB179 ΔE 0.055
- Dark Mint #48C072 ΔE 0.055
Use #37BF9B 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.