#04CA78
Closest named color: Algae Green (#21C36F). oklch(73.8% 0.179 155.9), rgb(4, 202, 120).
Aa
Black text reads best on this color (9.72:1).
About this color
#04CA78 is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.179 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.019 away. Black text reads best on it, at 9.72:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.179) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.72:1 |
| White text | 2.15:1 |
Values
| HEX | #04CA78 |
| RGB | rgb(4, 202, 120) |
| HSL | hsl(155, 96%, 40%) |
| OKLCH | oklch(73.8% 0.179 155.9) |
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 #04CA78 | 2.15:1 | Fails | Lc -46.4 | Large or bold text, headings |
| Black text on #04CA78 | 9.72:1 | AAA | Lc 62.2 | Content text, not long reading |
| #04CA78 text on white | 2.15:1 | Fails | Lc 41.7 | Non-text elements, placeholder text |
| #04CA78 text on black | 9.72:1 | AAA | Lc -60.5 | Content text, not long reading |
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
#EEF9F1
oklch(97.2% 0.016 154.5)
-
Step 100
100
#DAF1E1
oklch(93.7% 0.032 155.4)
-
Step 200
200
#B9E6C8
oklch(88.5% 0.062 155.7)
-
Step 300
300
#81D6A2
oklch(80.8% 0.112 156)
-
Step 400
400 (this color)
#04CA78
oklch(73.8% 0.179 155.9)
-
Step 500
500
#00A460
oklch(63.2% 0.154 155.8)
-
Step 600
600
#008A50
oklch(55.7% 0.136 155.8)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F36
oklch(42.7% 0.103 156.1)
-
Step 900
900
#004F2C
oklch(37.6% 0.091 156.1)
-
Step 950
950
#002F18
oklch(26.8% 0.065 156.1)
#04CA78 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) | #C9B972 | 0.160 |
| Deuteranopia (no green cones) | #B6AB7E | 0.157 |
| Tritanopia (no blue cones) | #00C8B6 | 0.088 |
| Achromatopsia (no color) | #B0B0B0 | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04CA78
#04CA78
oklch(73.8% 0.179 155.9)
- #ED79D5
#ED79D5
oklch(73.7% 0.179 335.6)
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 #04CA78, closest first.
No curated palette has a color within ΔE 0.04 of #04CA78.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.019
- Seaweed #18D17B ΔE 0.021
- Dark Mint Green #20C073 ΔE 0.027
- Dark Mint #48C072 ΔE 0.031
- Greenblue #23C48B ΔE 0.035
- Green Blue #01C08D ΔE 0.046
- Shamrock Green #02C14D ΔE 0.048
- Cool Green #33B864 ΔE 0.049
Use #04CA78 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.