#00C478
Closest named color: Algae Green (#21C36F). oklch(72.2% 0.172 157), rgb(0, 196, 120).
Aa
Black text reads best on this color (9.16:1).
About this color
#00C478 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.172 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.010 away. Black text reads best on it, at 9.16:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.16:1 |
| White text | 2.29:1 |
Values
| HEX | #00C478 |
| RGB | rgb(0, 196, 120) |
| HSL | hsl(157, 100%, 38%) |
| OKLCH | oklch(72.2% 0.172 157) |
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 #00C478 | 2.29:1 | Fails | Lc -49.3 | Large or bold text, headings |
| Black text on #00C478 | 9.16:1 | AAA | Lc 59.5 | Large or bold text, headings |
| #00C478 text on white | 2.29:1 | Fails | Lc 44.4 | Non-text elements, placeholder text |
| #00C478 text on black | 9.16:1 | AAA | Lc -57.7 | 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
#EEF9F2
oklch(97.2% 0.015 158.3)
-
Step 100
100
#DAF1E2
oklch(93.7% 0.031 157.2)
-
Step 200
200
#BAE6CA
oklch(88.6% 0.06 157)
-
Step 300
300
#83D6A5
oklch(81% 0.108 157)
-
Step 400
400 (this color)
#00C478
oklch(72.2% 0.172 157)
-
Step 500
500
#00A363
oklch(63% 0.15 157)
-
Step 600
600
#008A53
oklch(55.7% 0.133 157)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800
#005F37
oklch(42.7% 0.102 156.7)
-
Step 900
900
#004F2D
oklch(37.6% 0.09 156.8)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#00C478 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) | #C2B373 | 0.156 |
| Deuteranopia (no green cones) | #B0A67D | 0.153 |
| Tritanopia (no blue cones) | #00C2B1 | 0.082 |
| Achromatopsia (no color) | #ABABAB | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00C478
#00C478
oklch(72.2% 0.172 157)
- #E776CC
#E776CC
oklch(72.2% 0.172 337.1)
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 #00C478, closest first.
No curated palette has a color within ΔE 0.04 of #00C478.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.010
- Dark Mint Green #20C073 ΔE 0.011
- Dark Mint #48C072 ΔE 0.022
- Greenblue #23C48B ΔE 0.027
- Green Blue #01C08D ΔE 0.034
- Cool Green #33B864 ΔE 0.035
- Seaweed #18D17B ΔE 0.038
- Green Teal #0CB577 ΔE 0.044
Use #00C478 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.