#04B565
Closest named color: Cool Green (#33B864). oklch(67.9% 0.17 154.1), rgb(4, 181, 101).
Aa
Black text reads best on this color (7.80:1).
About this color
#04B565 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.170 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.017 away. Black text reads best on it, at 7.80:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 7.80:1 |
| White text | 2.69:1 |
Values
| HEX | #04B565 |
| RGB | rgb(4, 181, 101) |
| HSL | hsl(153, 96%, 36%) |
| OKLCH | oklch(67.9% 0.17 154.1) |
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 #04B565 | 2.69:1 | Fails | Lc -56.7 | Large or bold text, headings |
| Black text on #04B565 | 7.80:1 | AAA | Lc 52.5 | Large or bold text, headings |
| #04B565 text on white | 2.69:1 | Fails | Lc 51.5 | Large or bold text, headings |
| #04B565 text on black | 7.80:1 | AAA | Lc -50.3 | 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
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DBF0E1
oklch(93.6% 0.03 154.7)
-
Step 200
200
#BCE5C8
oklch(88.5% 0.058 154.3)
-
Step 300
300
#88D5A1
oklch(80.9% 0.106 153.9)
-
Step 400
400 (this color)
#04B565
oklch(67.9% 0.17 154.1)
-
Step 500
500
#00A45B
oklch(63.1% 0.158 154.2)
-
Step 600
600
#008A4B
oklch(55.6% 0.14 154)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F32
oklch(42.6% 0.107 154.1)
-
Step 900
900
#005029
oklch(37.8% 0.096 153.9)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#04B565 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) | #B5A55F | 0.149 |
| Deuteranopia (no green cones) | #A3996B | 0.145 |
| Tritanopia (no blue cones) | #00B3A2 | 0.087 |
| Achromatopsia (no color) | #9E9E9E | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04B565
#04B565
oklch(67.9% 0.17 154.1)
- #D56AC2
#D56AC2
oklch(67.9% 0.171 334.4)
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 #04B565, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.017
- Jade Green #2BAF6A ΔE 0.022
- Green Teal #0CB577 ΔE 0.024
- Medium Sea Green #3CB371 ΔE 0.027
- Shamrock #01B44C ΔE 0.028
- Dark Seafoam #1FB57A ΔE 0.029
- Seaweed Green #35AD6B ΔE 0.029
- Medium Green #39AD48 ΔE 0.032
Use #04B565 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.