#398C4E
Closest named color: Sea Green (#2E8B57). oklch(57.3% 0.124 149.2), rgb(57, 140, 78).
Aa
Black text reads best on this color (5.03:1).
About this color
#398C4E is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.124 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.014 away. Black text reads best on it, at 5.03:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.03:1 |
| White text | 4.17:1 |
Values
| HEX | #398C4E |
| RGB | rgb(57, 140, 78) |
| HSL | hsl(135, 42%, 39%) |
| OKLCH | oklch(57.3% 0.124 149.2) |
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 #398C4E | 4.17:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #398C4E | 5.03:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #398C4E text on white | 4.17:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #398C4E text on black | 5.03:1 | AA | Lc -33.2 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE4
oklch(93.6% 0.016 148.4)
-
Step 200
200
#CCDFCE
oklch(88.5% 0.031 148.4)
-
Step 300
300
#A8CBAD
oklch(80.8% 0.056 149.1)
-
Step 400
400
#78B082
oklch(70.6% 0.089 149.3)
-
Step 500
500
#539C63
oklch(63% 0.113 149.3)
-
Step 600
600 (this color)
#398C4E
oklch(57.3% 0.124 149.2)
-
Step 700
700
#25723A
oklch(49.1% 0.115 149.1)
-
Step 800
800
#215D31
oklch(42.7% 0.095 149.4)
-
Step 900
900
#214C2B
oklch(37.6% 0.074 149.3)
-
Step 950
950
#142D19
oklch(27% 0.048 148.8)
#398C4E 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) | #8D8149 | 0.101 |
| Deuteranopia (no green cones) | #827952 | 0.100 |
| Tritanopia (no blue cones) | #24897D | 0.071 |
| Achromatopsia (no color) | #7C7C7C | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398C4E
#398C4E
oklch(57.3% 0.124 149.2)
- #A05B9C
#A05B9C
oklch(57.3% 0.125 329.2)
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 #398C4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.014
- Fern Green #548D44 ΔE 0.025
- Light Forest Green #4F9153 ΔE 0.027
- Viridian #1E9167 ΔE 0.032
- Dark Sage #598556 ΔE 0.040
- Jungle Green #048243 ΔE 0.044
- Moss Green #658B38 ΔE 0.044
- Kelley Green #009337 ΔE 0.046
Use #398C4E 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.