#375F51
Closest named color: Dark Green Blue (#1F6357). oklch(45.1% 0.051 169.6), rgb(55, 95, 81).
Aa
White text reads best on this color (7.19:1).
About this color
#375F51 is a medium-dark, muted green. In OKLCH its lightness is 45%, its chroma 0.051 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.021 away. White text reads best on it, at 7.19:1.
| Hue family | Greens |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.051) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.91:1 |
| White text | 7.19:1 |
Values
| HEX | #375F51 |
| RGB | rgb(55, 95, 81) |
| HSL | hsl(159, 27%, 29%) |
| OKLCH | oklch(45.1% 0.051 169.6) |
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 #375F51 | 7.19:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #375F51 | 2.91:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #375F51 text on white | 7.19:1 | AAA | Lc 84.9 | Fine for body text |
| #375F51 text on black | 2.91:1 | Fails | Lc -17.1 | Dividers and decoration only |
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 800.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#CFDDD7
oklch(88.5% 0.017 168.4)
-
Step 300
300
#AFC7BD
oklch(80.9% 0.03 168.6)
-
Step 400
400
#83AB9C
oklch(70.8% 0.049 169.9)
-
Step 500
500
#639683
oklch(63.1% 0.062 168.9)
-
Step 600
600
#49806D
oklch(55.6% 0.066 169.6)
-
Step 700
700
#3A6C5B
oklch(49.1% 0.061 169.7)
-
Step 800
800 (this color)
#375F51
oklch(45.1% 0.051 169.6)
-
Step 900
900
#2B493E
oklch(37.8% 0.041 168.9)
-
Step 950
950
#1A2B24
oklch(27.1% 0.026 166.8)
#375F51 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) | #5D5A50 | 0.052 |
| Deuteranopia (no green cones) | #565552 | 0.050 |
| Tritanopia (no blue cones) | #2B5F5B | 0.019 |
| Achromatopsia (no color) | #575757 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375F51
#375F51
oklch(45.1% 0.051 169.6)
- #6C4A5A
#6C4A5A
oklch(45.2% 0.052 349.6)
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 #375F51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.021
- Dark Aqua #05696B ΔE 0.047
- Pine #2B5D34 ΔE 0.047
- Petrol #005F6A ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.054
- Spruce #0A5F38 ΔE 0.055
- Deep Teal #00555A ΔE 0.057
- Dark Blue Green #005249 ΔE 0.062
Use #375F51 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.