#129057
Closest named color: Sea Green (#2E8B57). oklch(57.7% 0.134 156.4), rgb(18, 144, 87).
Aa
Black text reads best on this color (5.15:1).
About this color
#129057 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.134 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.018 away. Black text reads best on it, at 5.15:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #129057 |
| RGB | rgb(18, 144, 87) |
| HSL | hsl(153, 78%, 32%) |
| OKLCH | oklch(57.7% 0.134 156.4) |
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 #129057 | 4.07:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #129057 | 5.15:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #129057 text on white | 4.07:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #129057 text on black | 5.15:1 | AA | Lc -34.2 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E1EEE5
oklch(93.7% 0.018 155.8)
-
Step 200
200
#C8E0D0
oklch(88.4% 0.034 156.5)
-
Step 300
300
#A2CDB1
oklch(81% 0.06 156.3)
-
Step 400
400
#6BB388
oklch(70.7% 0.097 156.6)
-
Step 500
500
#3C9F6A
oklch(63% 0.123 156.6)
-
Step 600
600 (this color)
#129057
oklch(57.7% 0.134 156.4)
-
Step 700
700
#007444
oklch(49.2% 0.118 156.6)
-
Step 800
800
#005F36
oklch(42.7% 0.103 156.1)
-
Step 900
900
#114E2F
oklch(37.7% 0.081 156.3)
-
Step 950
950
#0D2E1C
oklch(27.1% 0.051 156.5)
#129057 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) | #8F8453 | 0.121 |
| Deuteranopia (no green cones) | #817A5B | 0.118 |
| Tritanopia (no blue cones) | #008F82 | 0.064 |
| Achromatopsia (no color) | #7E7E7E | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129057
#129057
oklch(57.7% 0.134 156.4)
- #A95797
#A95797
oklch(57.6% 0.134 336.1)
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 #129057, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.018
- Viridian #1E9167 ΔE 0.023
- Light Forest Green #4F9153 ΔE 0.037
- Fern Green #548D44 ΔE 0.042
- Kelley Green #009337 ΔE 0.042
- Jungle Green #048243 ΔE 0.045
- Ocean Green #3D9973 ΔE 0.052
- Forest Green #228B22 ΔE 0.053
Use #129057 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.