#278963
Closest named color: Sea Green (#2E8B57). oklch(56.4% 0.108 162.9), rgb(39, 137, 99).
Aa
Black text reads best on this color (4.84:1).
About this color
#278963 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.108 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.020 away. Black text reads best on it, at 4.84:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #278963 |
| RGB | rgb(39, 137, 99) |
| HSL | hsl(157, 56%, 35%) |
| OKLCH | oklch(56.4% 0.108 162.9) |
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 #278963 | 4.33:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #278963 | 4.84:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #278963 text on white | 4.33:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #278963 text on black | 4.84:1 | AA | Lc -32.0 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#CADFD4
oklch(88.5% 0.027 163.1)
-
Step 300
300
#A5CBB8
oklch(80.9% 0.048 163.5)
-
Step 400
400
#72B093
oklch(70.7% 0.077 163.4)
-
Step 500
500
#499C78
oklch(63.1% 0.099 163)
-
Step 600
600 (this color)
#278963
oklch(56.4% 0.108 162.9)
-
Step 700
700
#137250
oklch(49.1% 0.1 163)
-
Step 800
800
#155D42
oklch(42.8% 0.083 163.2)
-
Step 900
900
#1B4C37
oklch(37.6% 0.065 162.4)
-
Step 950
950
#112D21
oklch(27.1% 0.041 163.5)
#278963 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) | #877F61 | 0.105 |
| Deuteranopia (no green cones) | #7A7665 | 0.100 |
| Tritanopia (no blue cones) | #00897F | 0.042 |
| Achromatopsia (no color) | #797979 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #278963
#278963
oklch(56.4% 0.108 162.9)
- #A15A86
#A15A86
oklch(56.4% 0.109 343.2)
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 #278963, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.020
- Viridian #1E9167 ΔE 0.023
- Dark Sage #598556 ΔE 0.041
- Light Forest Green #4F9153 ΔE 0.048
- Jungle Green #048243 ΔE 0.049
- Ocean Green #3D9973 ΔE 0.053
- Fern Green #548D44 ΔE 0.054
- Dark Cyan #008B8B ΔE 0.059
Use #278963 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.