#37C104
Closest named color: Frog Green (#58BC08). oklch(70.9% 0.229 140.4), rgb(55, 193, 4).
Aa
Black text reads best on this color (8.79:1).
About this color
#37C104 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.229 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Frog Green (#58BC08), ΔE 0.023 away. Black text reads best on it, at 8.79:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.229) |
| Temperature | in between |
| Nearest name | Frog Green (#58BC08) |
| Black text | 8.79:1 |
| White text | 2.38:1 |
Values
| HEX | #37C104 |
| RGB | rgb(55, 193, 4) |
| HSL | hsl(104, 96%, 39%) |
| OKLCH | oklch(70.9% 0.229 140.4) |
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 #37C104 | 2.38:1 | Fails | Lc -51.4 | Large or bold text, headings |
| Black text on #37C104 | 8.79:1 | AAA | Lc 57.5 | Large or bold text, headings |
| #37C104 text on white | 2.38:1 | Fails | Lc 46.4 | Large or bold text, headings |
| #37C104 text on black | 8.79:1 | AAA | Lc -55.6 | 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
#EFF9ED
oklch(97.1% 0.019 140.5)
-
Step 100
100
#DCF1D7
oklch(93.6% 0.041 139.7)
-
Step 200
200
#BDE7B5
oklch(88.5% 0.08 140.6)
-
Step 300
300
#8CD77D
oklch(80.9% 0.143 140.3)
-
Step 400
400 (this color)
#37C104
oklch(70.9% 0.229 140.4)
-
Step 500
500
#2DA500
oklch(63.1% 0.205 140.4)
-
Step 600
600
#248B00
oklch(55.7% 0.181 140.5)
-
Step 700
700
#1D7500
oklch(49.2% 0.16 140.4)
-
Step 800
800
#166000
oklch(42.8% 0.139 140.4)
-
Step 900
900
#115000
oklch(37.7% 0.122 140.4)
-
Step 950
950
#073000
oklch(27% 0.088 140.4)
#37C104 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) | #C6AE00 | 0.157 |
| Deuteranopia (no green cones) | #B7A42A | 0.154 |
| Tritanopia (no blue cones) | #14BAA4 | 0.155 |
| Achromatopsia (no color) | #A8A8A8 | 0.231 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37C104
#37C104
oklch(70.9% 0.229 140.4)
- #DE65F7
#DE65F7
oklch(71% 0.23 320.5)
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 #37C104, closest first.
No curated palette has a color within ΔE 0.04 of #37C104.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Frog Green #58BC08 ΔE 0.023
- Lime Green #32CD32 ΔE 0.034
- Shamrock Green #02C14D ΔE 0.037
- Leafy Green #51B73B ΔE 0.045
- Dark Lime Green #7EBD01 ΔE 0.056
- Apple #6ECB3C ΔE 0.059
- Shamrock #01B44C ΔE 0.061
- Apple Green #76CD26 ΔE 0.063
Use #37C104 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.