#09C588
Closest named color: Greenblue (#23C48B). oklch(72.8% 0.158 162), rgb(9, 197, 136).
Aa
Black text reads best on this color (9.35:1).
About this color
#09C588 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.158 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.008 away. Black text reads best on it, at 9.35:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 9.35:1 |
| White text | 2.24:1 |
Values
| HEX | #09C588 |
| RGB | rgb(9, 197, 136) |
| HSL | hsl(161, 91%, 40%) |
| OKLCH | oklch(72.8% 0.158 162) |
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 #09C588 | 2.24:1 | Fails | Lc -48.4 | Large or bold text, headings |
| Black text on #09C588 | 9.35:1 | AAA | Lc 60.4 | Content text, not long reading |
| #09C588 text on white | 2.24:1 | Fails | Lc 43.6 | Non-text elements, placeholder text |
| #09C588 text on black | 9.35:1 | AAA | Lc -58.6 | 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
#EEF8F3
oklch(97% 0.012 164.8)
-
Step 100
100
#DAF0E4
oklch(93.6% 0.028 162.1)
-
Step 200
200
#BAE5CE
oklch(88.5% 0.055 161.7)
-
Step 300
300
#83D5AD
oklch(80.9% 0.099 161.9)
-
Step 400
400 (this color)
#09C588
oklch(72.8% 0.158 162)
-
Step 500
500
#00A36F
oklch(63.2% 0.139 161.8)
-
Step 600
600
#00895D
oklch(55.7% 0.122 162)
-
Step 700
700
#00734D
oklch(49.1% 0.108 161.8)
-
Step 800
800
#005E3F
oklch(42.6% 0.093 162.3)
-
Step 900
900
#004F34
oklch(37.8% 0.083 162.1)
-
Step 950
950
#002F1D
oklch(27% 0.059 161.7)
#09C588 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) | #C2B584 | 0.152 |
| Deuteranopia (no green cones) | #AEA78C | 0.148 |
| Tritanopia (no blue cones) | #00C5B5 | 0.064 |
| Achromatopsia (no color) | #ADADAD | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09C588
#09C588
oklch(72.8% 0.158 162)
- #E97BC3
#E97BC3
oklch(72.8% 0.159 342)
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 #09C588, closest first.
No curated palette has a color within ΔE 0.04 of #09C588.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.008
- Green Blue #01C08D ΔE 0.018
- Dark Mint Green #20C073 ΔE 0.026
- Dark Mint #48C072 ΔE 0.029
- Algae Green #21C36F ΔE 0.030
- Seaweed #18D17B ΔE 0.043
- Dark Seafoam #1FB57A ΔE 0.045
- Green Teal #0CB577 ΔE 0.046
Use #09C588 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.