#31C259
Closest named color: Shamrock Green (#02C14D). oklch(71.7% 0.189 148), rgb(49, 194, 89).
Aa
Black text reads best on this color (8.99:1).
About this color
#31C259 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.189 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock Green (#02C14D), ΔE 0.019 away. Black text reads best on it, at 8.99:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.189) |
| Temperature | in between |
| Nearest name | Shamrock Green (#02C14D) |
| Black text | 8.99:1 |
| White text | 2.33:1 |
Values
| HEX | #31C259 |
| RGB | rgb(49, 194, 89) |
| HSL | hsl(137, 60%, 48%) |
| OKLCH | oklch(71.7% 0.189 148) |
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 #31C259 | 2.33:1 | Fails | Lc -50.4 | Large or bold text, headings |
| Black text on #31C259 | 8.99:1 | AAA | Lc 58.4 | Large or bold text, headings |
| #31C259 text on white | 2.33:1 | Fails | Lc 45.5 | Large or bold text, headings |
| #31C259 text on black | 8.99:1 | AAA | Lc -56.5 | 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
#EFF9F0
oklch(97.2% 0.016 148.4)
-
Step 100
100
#DBF1DD
oklch(93.7% 0.035 147.9)
-
Step 200
200
#BDE6C1
oklch(88.6% 0.066 147.7)
-
Step 300
300
#8AD695
oklch(81% 0.118 148)
-
Step 400
400 (this color)
#31C259
oklch(71.7% 0.189 148)
-
Step 500
500
#00A541
oklch(63% 0.182 148)
-
Step 600
600
#008B36
oklch(55.5% 0.161 148.1)
-
Step 700
700
#00752C
oklch(49% 0.142 148)
-
Step 800
800
#006023
oklch(42.7% 0.123 148.1)
-
Step 900
900
#00501C
oklch(37.6% 0.109 148.1)
-
Step 950
950
#00300D
oklch(27% 0.078 147.8)
#31C259 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) | #C4B14F | 0.150 |
| Deuteranopia (no green cones) | #B3A561 | 0.148 |
| Tritanopia (no blue cones) | #00BEAA | 0.109 |
| Achromatopsia (no color) | #AAAAAA | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31C259
#31C259
oklch(71.7% 0.189 148)
- #E072DE
#E072DE
oklch(71.6% 0.189 328)
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 #31C259, closest first.
No curated palette has a color within ΔE 0.04 of #31C259.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock Green #02C14D ΔE 0.019
- Algae Green #21C36F ΔE 0.024
- Dark Mint Green #20C073 ΔE 0.032
- Leafy Green #51B73B ΔE 0.034
- Cool Green #33B864 ΔE 0.035
- Dark Mint #48C072 ΔE 0.035
- Shamrock #01B44C ΔE 0.045
- Frog Green #58BC08 ΔE 0.046
Use #31C259 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.