#03BC51
Closest named color: Shamrock Green (#02C14D). oklch(69.4% 0.196 148.9), rgb(3, 188, 81).
Aa
Black text reads best on this color (8.31:1).
About this color
#03BC51 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.196 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock Green (#02C14D), ΔE 0.016 away. Black text reads best on it, at 8.31:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.196) |
| Temperature | in between |
| Nearest name | Shamrock Green (#02C14D) |
| Black text | 8.31:1 |
| White text | 2.52:1 |
Values
| HEX | #03BC51 |
| RGB | rgb(3, 188, 81) |
| HSL | hsl(145, 97%, 37%) |
| OKLCH | oklch(69.4% 0.196 148.9) |
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 #03BC51 | 2.52:1 | Fails | Lc -53.8 | Large or bold text, headings |
| Black text on #03BC51 | 8.31:1 | AAA | Lc 55.2 | Large or bold text, headings |
| #03BC51 text on white | 2.52:1 | Fails | Lc 48.8 | Large or bold text, headings |
| #03BC51 text on black | 8.31:1 | AAA | Lc -53.2 | 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
#EEF9F0
oklch(97.1% 0.017 151.1)
-
Step 100
100
#DAF1DD
oklch(93.6% 0.036 149.1)
-
Step 200
200
#BBE6C1
oklch(88.5% 0.067 148.9)
-
Step 300
300
#86D794
oklch(81% 0.123 148.6)
-
Step 400
400 (this color)
#03BC51
oklch(69.4% 0.196 148.9)
-
Step 500
500
#00A546
oklch(63% 0.178 148.9)
-
Step 600
600
#008B3A
oklch(55.6% 0.157 148.9)
-
Step 700
700
#00752F
oklch(49.1% 0.139 148.8)
-
Step 800
800
#006026
oklch(42.7% 0.12 149)
-
Step 900
900
#00501E
oklch(37.6% 0.107 148.8)
-
Step 950
950
#00300F
oklch(27% 0.076 148.8)
#03BC51 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) | #BEAA47 | 0.158 |
| Deuteranopia (no green cones) | #AC9E5A | 0.156 |
| Tritanopia (no blue cones) | #00B8A4 | 0.113 |
| Achromatopsia (no color) | #A3A3A3 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03BC51
#03BC51
oklch(69.4% 0.196 148.9)
- #DC68D7
#DC68D7
oklch(69.4% 0.196 329.1)
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 #03BC51, closest first.
No curated palette has a color within ΔE 0.04 of #03BC51.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock Green #02C14D ΔE 0.016
- Shamrock #01B44C ΔE 0.023
- Leafy Green #51B73B ΔE 0.030
- Cool Green #33B864 ΔE 0.031
- Algae Green #21C36F ΔE 0.037
- Dark Mint Green #20C073 ΔE 0.040
- Medium Green #39AD48 ΔE 0.042
- Frog Green #58BC08 ΔE 0.047
Use #03BC51 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.