#398457
Closest named color: Sea Green (#2E8B57). oklch(55.3% 0.103 154.7), rgb(57, 132, 87).
Aa
Black text reads best on this color (4.61:1).
About this color
#398457 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.103 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 0.022 away. Black text reads best on it, at 4.61:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.61:1 |
| White text | 4.55:1 |
Values
| HEX | #398457 |
| RGB | rgb(57, 132, 87) |
| HSL | hsl(144, 40%, 37%) |
| OKLCH | oklch(55.3% 0.103 154.7) |
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 #398457 | 4.55:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #398457 | 4.61:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #398457 text on white | 4.55:1 | AA | Lc 71.4 | Content text, not long reading |
| #398457 text on black | 4.61:1 | AA | Lc -30.3 | 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
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CDDED2
oklch(88.4% 0.024 155.1)
-
Step 300
300
#AACAB4
oklch(80.9% 0.046 155.2)
-
Step 400
400
#7BAF8C
oklch(70.8% 0.075 154.6)
-
Step 500
500
#579A70
oklch(63% 0.094 155.1)
-
Step 600
600 (this color)
#398457
oklch(55.3% 0.103 154.7)
-
Step 700
700
#2B7048
oklch(49% 0.095 155)
-
Step 800
800
#255C3B
oklch(42.8% 0.08 154.6)
-
Step 900
900
#244B33
oklch(37.7% 0.061 155.1)
-
Step 950
950
#162C1E
oklch(27% 0.039 154.9)
#398457 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) | #847A54 | 0.092 |
| Deuteranopia (no green cones) | #79735A | 0.089 |
| Tritanopia (no blue cones) | #238378 | 0.050 |
| Achromatopsia (no color) | #767676 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398457
#398457
oklch(55.3% 0.103 154.7)
- #975A8B
#975A8B
oklch(55.3% 0.104 334.4)
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 #398457, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.022
- Dark Sage #598556 ΔE 0.032
- Viridian #1E9167 ΔE 0.038
- Jungle Green #048243 ΔE 0.040
- Fern Green #548D44 ΔE 0.048
- Light Forest Green #4F9153 ΔE 0.048
- Military Green #667C3E ΔE 0.050
- Swamp #698339 ΔE 0.056
Use #398457 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.