#298E4B
Closest named color: Sea Green (#2E8B57). oklch(57.3% 0.137 150.5), rgb(41, 142, 75).
Aa
Black text reads best on this color (5.06:1).
About this color
#298E4B is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.137 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.021 away. Black text reads best on it, at 5.06:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.06:1 |
| White text | 4.14:1 |
Values
| HEX | #298E4B |
| RGB | rgb(41, 142, 75) |
| HSL | hsl(140, 55%, 36%) |
| OKLCH | oklch(57.3% 0.137 150.5) |
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 #298E4B | 4.14:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #298E4B | 5.06:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #298E4B text on white | 4.14:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #298E4B text on black | 5.06:1 | AA | Lc -33.5 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CAE0CE
oklch(88.5% 0.034 150.8)
-
Step 300
300
#A5CCAC
oklch(80.8% 0.061 150.1)
-
Step 400
400
#72B280
oklch(70.7% 0.098 150.2)
-
Step 500
500
#489E60
oklch(63% 0.125 150.5)
-
Step 600
600 (this color)
#298E4B
oklch(57.3% 0.137 150.5)
-
Step 700
700
#117437
oklch(49.1% 0.128 150.3)
-
Step 800
800
#145E2E
oklch(42.6% 0.105 150.4)
-
Step 900
900
#1A4D29
oklch(37.6% 0.082 150.2)
-
Step 950
950
#112D19
oklch(26.9% 0.051 151)
#298E4B 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) | #8F8246 | 0.114 |
| Deuteranopia (no green cones) | #827950 | 0.112 |
| Tritanopia (no blue cones) | #008C7E | 0.074 |
| Achromatopsia (no color) | #7C7C7C | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #298E4B
#298E4B
oklch(57.3% 0.137 150.5)
- #A4579E
#A4579E
oklch(57.3% 0.137 330.1)
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 #298E4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.021
- Fern Green #548D44 ΔE 0.033
- Kelley Green #009337 ΔE 0.034
- Light Forest Green #4F9153 ΔE 0.034
- Viridian #1E9167 ΔE 0.035
- Forest Green #228B22 ΔE 0.041
- Jungle Green #048243 ΔE 0.041
- Irish Green #019529 ΔE 0.048
Use #298E4B 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.