#37B070
Closest named color: Medium Sea Green (#3CB371). oklch(67.5% 0.143 155.8), rgb(55, 176, 112).
Aa
Black text reads best on this color (7.60:1).
About this color
#37B070 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.143 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.010 away. Black text reads best on it, at 7.60:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 7.60:1 |
| White text | 2.76:1 |
Values
| HEX | #37B070 |
| RGB | rgb(55, 176, 112) |
| HSL | hsl(148, 52%, 45%) |
| OKLCH | oklch(67.5% 0.143 155.8) |
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 #37B070 | 2.76:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #37B070 | 7.60:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #37B070 text on white | 2.76:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #37B070 text on black | 7.60:1 | AAA | Lc -48.9 | 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
#EFF8F2
oklch(97.1% 0.012 157)
-
Step 100
100
#DDEFE3
oklch(93.5% 0.025 156.7)
-
Step 200
200
#C0E3CC
oklch(88.4% 0.048 156.5)
-
Step 300
300
#91D2A8
oklch(80.9% 0.089 155.5)
-
Step 400
400 (this color)
#37B070
oklch(67.5% 0.143 155.8)
-
Step 500
500
#00A460
oklch(63.2% 0.154 155.8)
-
Step 600
600
#008A50
oklch(55.7% 0.136 155.8)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#004F2C
oklch(37.6% 0.091 156.1)
-
Step 950
950
#002F18
oklch(26.8% 0.065 156.1)
#37B070 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) | #AFA26C | 0.128 |
| Deuteranopia (no green cones) | #A09774 | 0.126 |
| Tritanopia (no blue cones) | #00AEA0 | 0.069 |
| Achromatopsia (no color) | #9C9C9C | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37B070
#37B070
oklch(67.5% 0.143 155.8)
- #CC72B8
#CC72B8
oklch(67.5% 0.142 335.9)
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 #37B070, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.010
- Seaweed Green #35AD6B ΔE 0.010
- Dark Seafoam Green #3EAF76 ΔE 0.011
- Jade Green #2BAF6A ΔE 0.011
- Bluey Green #2BB179 ΔE 0.011
- Dark Seafoam #1FB57A ΔE 0.016
- Green Teal #0CB577 ΔE 0.017
- Algae #54AC68 ΔE 0.020
Use #37B070 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.