#37B18C
Closest named color: Greeny Blue (#42B395). oklch(68.4% 0.12 168.6), rgb(55, 177, 140).
Aa
Black text reads best on this color (7.82:1).
About this color
#37B18C is a medium-light, moderately saturated green. In OKLCH its lightness is 68%, its chroma 0.120 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.016 away. Black text reads best on it, at 7.82:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.82:1 |
| White text | 2.68:1 |
Values
| HEX | #37B18C |
| RGB | rgb(55, 177, 140) |
| HSL | hsl(162, 53%, 45%) |
| OKLCH | oklch(68.4% 0.12 168.6) |
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 #37B18C | 2.68:1 | Fails | Lc -56.9 | Large or bold text, headings |
| Black text on #37B18C | 7.82:1 | AAA | Lc 52.3 | Large or bold text, headings |
| #37B18C text on white | 2.68:1 | Fails | Lc 51.7 | Large or bold text, headings |
| #37B18C text on black | 7.82:1 | AAA | Lc -50.2 | 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 400.
-
Step 50
50
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DDEFE7
oklch(93.7% 0.022 167.5)
-
Step 200
200
#BFE3D4
oklch(88.6% 0.043 168.2)
-
Step 300
300
#90D1B8
oklch(81% 0.075 168.5)
-
Step 400
400 (this color)
#37B18C
oklch(68.4% 0.12 168.6)
-
Step 500
500
#00A17B
oklch(63% 0.127 168.5)
-
Step 600
600
#008867
oklch(55.7% 0.112 168.2)
-
Step 700
700
#007256
oklch(49% 0.099 168.4)
-
Step 800
800
#005E46
oklch(42.8% 0.087 168)
-
Step 900
900
#004E3A
oklch(37.7% 0.076 168.5)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#37B18C 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) | #ACA58A | 0.121 |
| Deuteranopia (no green cones) | #9C998E | 0.117 |
| Tritanopia (no blue cones) | #00B2A6 | 0.037 |
| Achromatopsia (no color) | #9E9E9E | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37B18C
#37B18C
oklch(68.4% 0.12 168.6)
- #D079A6
#D079A6
oklch(68.4% 0.121 348.5)
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 #37B18C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.016
- Bluey Green #2BB179 ΔE 0.028
- Dark Seafoam Green #3EAF76 ΔE 0.029
- Dark Seafoam #1FB57A ΔE 0.033
- Tea #65AB7C ΔE 0.035
- Green Teal #0CB577 ΔE 0.039
- Medium Sea Green #3CB371 ΔE 0.039
- Light Sea Green #20B2AA ΔE 0.043
Use #37B18C 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.