#388B5B
Closest named color: Sea Green (#2E8B57). oklch(57.3% 0.11 155.2), rgb(56, 139, 91).
Aa
Black text reads best on this color (5.01:1).
About this color
#388B5B is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.110 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.010 away. Black text reads best on it, at 5.01:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #388B5B |
| RGB | rgb(56, 139, 91) |
| HSL | hsl(145, 43%, 38%) |
| OKLCH | oklch(57.3% 0.11 155.2) |
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 #388B5B | 4.18:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #388B5B | 5.01:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #388B5B text on white | 4.18:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #388B5B text on black | 5.01:1 | AA | Lc -33.0 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CCDFD1
oklch(88.6% 0.028 153.8)
-
Step 300
300
#A8CBB3
oklch(81% 0.05 155.2)
-
Step 400
400
#78B08B
oklch(70.8% 0.08 154.9)
-
Step 500
500
#529C6E
oklch(63.2% 0.102 154.9)
-
Step 600
600 (this color)
#388B5B
oklch(57.3% 0.11 155.2)
-
Step 700
700
#247146
oklch(49% 0.102 155)
-
Step 800
800
#205C3A
oklch(42.6% 0.084 155.3)
-
Step 900
900
#214C32
oklch(37.8% 0.066 155)
-
Step 950
950
#142C1D
oklch(26.8% 0.041 155)
#388B5B 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) | #8B8158 | 0.099 |
| Deuteranopia (no green cones) | #7F795E | 0.095 |
| Tritanopia (no blue cones) | #1B8A7F | 0.054 |
| Achromatopsia (no color) | #7C7C7C | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #388B5B
#388B5B
oklch(57.3% 0.11 155.2)
- #A05E92
#A05E92
oklch(57.4% 0.11 335.2)
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 #388B5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.010
- Viridian #1E9167 ΔE 0.021
- Light Forest Green #4F9153 ΔE 0.031
- Dark Sage #598556 ΔE 0.032
- Fern Green #548D44 ΔE 0.037
- Ocean Green #3D9973 ΔE 0.047
- Jungle Green #048243 ΔE 0.049
- Moss Green #658B38 ΔE 0.054
Use #388B5B 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.