#308A5E
Closest named color: Sea Green (#2E8B57). oklch(56.8% 0.11 158.4), rgb(48, 138, 94).
Aa
Black text reads best on this color (4.92:1).
About this color
#308A5E is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.110 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 0.011 away. Black text reads best on it, at 4.92:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #308A5E |
| RGB | rgb(48, 138, 94) |
| HSL | hsl(151, 48%, 36%) |
| OKLCH | oklch(56.8% 0.11 158.4) |
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 #308A5E | 4.26:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #308A5E | 4.92:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #308A5E text on white | 4.26:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #308A5E text on black | 4.92:1 | AA | Lc -32.5 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CBDFD2
oklch(88.5% 0.028 157.3)
-
Step 300
300
#A7CBB5
oklch(81% 0.049 158.3)
-
Step 400
400
#75B08E
oklch(70.7% 0.079 158.3)
-
Step 500
500
#4E9C72
oklch(63.1% 0.101 158.1)
-
Step 600
600 (this color)
#308A5E
oklch(56.8% 0.11 158.4)
-
Step 700
700
#1C724A
oklch(49.2% 0.103 158.2)
-
Step 800
800
#1B5D3D
oklch(42.8% 0.085 158.2)
-
Step 900
900
#1E4C34
oklch(37.7% 0.066 158.1)
-
Step 950
950
#132D1F
oklch(27.2% 0.042 158.4)
#308A5E 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) | #89805B | 0.102 |
| Deuteranopia (no green cones) | #7D7761 | 0.100 |
| Tritanopia (no blue cones) | #00897E | 0.049 |
| Achromatopsia (no color) | #7A7A7A | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #308A5E
#308A5E
oklch(56.8% 0.11 158.4)
- #A05C8D
#A05C8D
oklch(56.8% 0.109 338.2)
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 #308A5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.011
- Viridian #1E9167 ΔE 0.021
- Dark Sage #598556 ΔE 0.036
- Light Forest Green #4F9153 ΔE 0.039
- Fern Green #548D44 ΔE 0.044
- Jungle Green #048243 ΔE 0.047
- Ocean Green #3D9973 ΔE 0.050
- Slate Green #658D6D ΔE 0.059
Use #308A5E 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.