#218858
Closest named color: Sea Green (#2E8B57). oklch(55.7% 0.119 157.9), rgb(33, 136, 88).
Aa
Black text reads best on this color (4.72:1).
About this color
#218858 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.119 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.013 away. Black text reads best on it, at 4.72:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #218858 |
| RGB | rgb(33, 136, 88) |
| HSL | hsl(152, 61%, 33%) |
| OKLCH | oklch(55.7% 0.119 157.9) |
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 #218858 | 4.44:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #218858 | 4.72:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #218858 text on white | 4.44:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #218858 text on black | 4.72:1 | AA | Lc -31.2 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CADFD2
oklch(88.4% 0.029 158.6)
-
Step 300
300
#A5CCB4
oklch(81% 0.053 158)
-
Step 400
400
#71B18C
oklch(70.7% 0.086 157.9)
-
Step 500
500
#479D70
oklch(63% 0.108 158.2)
-
Step 600
600 (this color)
#218858
oklch(55.7% 0.119 157.9)
-
Step 700
700
#0F7348
oklch(49.1% 0.11 158)
-
Step 800
800
#135E3B
oklch(42.8% 0.092 157.7)
-
Step 900
900
#194D33
oklch(37.8% 0.071 158.2)
-
Step 950
950
#112D1E
oklch(27% 0.044 158)
#218858 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) | #877D55 | 0.109 |
| Deuteranopia (no green cones) | #7A745B | 0.106 |
| Tritanopia (no blue cones) | #00877C | 0.054 |
| Achromatopsia (no color) | #787878 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218858
#218858
oklch(55.7% 0.119 157.9)
- #9F568C
#9F568C
oklch(55.7% 0.119 337.7)
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 #218858, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.013
- Viridian #1E9167 ΔE 0.029
- Jungle Green #048243 ΔE 0.033
- Dark Sage #598556 ΔE 0.045
- Light Forest Green #4F9153 ΔE 0.047
- Fern Green #548D44 ΔE 0.049
- Kelley Green #009337 ΔE 0.061
- Ocean Green #3D9973 ΔE 0.062
Use #218858 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.