#59C09F
Closest named color: Medium Aquamarine (#66CDAA). oklch(73.7% 0.108 169.7), rgb(89, 192, 159).
Aa
Black text reads best on this color (9.46:1).
About this color
#59C09F is a medium-light, moderately saturated green. In OKLCH its lightness is 74%, its chroma 0.108 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.040 away. Black text reads best on it, at 9.46:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 9.46:1 |
| White text | 2.21:1 |
Values
| HEX | #59C09F |
| RGB | rgb(89, 192, 159) |
| HSL | hsl(161, 45%, 55%) |
| OKLCH | oklch(73.7% 0.108 169.7) |
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 #59C09F | 2.21:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #59C09F | 9.46:1 | AAA | Lc 60.5 | Content text, not long reading |
| #59C09F text on white | 2.21:1 | Fails | Lc 43.5 | Non-text elements, placeholder text |
| #59C09F text on black | 9.46:1 | AAA | Lc -58.7 | 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
#F0F7F4
oklch(97% 0.008 168.8)
-
Step 100
100
#DEEEE8
oklch(93.6% 0.019 171.5)
-
Step 200
200
#C2E2D5
oklch(88.6% 0.038 169)
-
Step 300
300
#95CFBA
oklch(80.9% 0.067 170.2)
-
Step 400
400 (this color)
#59C09F
oklch(73.7% 0.108 169.7)
-
Step 500
500
#00A17D
oklch(63% 0.125 169.6)
-
Step 600
600
#008869
oklch(55.7% 0.111 169.5)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#59C09F 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) | #BBB59D | 0.110 |
| Deuteranopia (no green cones) | #ACA9A1 | 0.107 |
| Tritanopia (no blue cones) | #2AC1B6 | 0.037 |
| Achromatopsia (no color) | #AEAEAE | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59C09F
#59C09F
oklch(73.7% 0.108 169.7)
- #DD8DB4
#DD8DB4
oklch(73.7% 0.108 349.4)
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 #59C09F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.040
- Greeny Blue #42B395 ΔE 0.043
- Topaz #13BBAF ΔE 0.043
- Greenblue #23C48B ΔE 0.046
- Green Blue #01C08D ΔE 0.047
- Dark Sea Green #8FBC8F ΔE 0.051
- Pale Teal #82CBB2 ΔE 0.056
- Soft Green #6FC276 ΔE 0.057
Use #59C09F 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.