#375A51
Closest named color: Dark Green Blue (#1F6357). oklch(43.8% 0.043 176.1), rgb(55, 90, 81).
Aa
White text reads best on this color (7.65:1).
About this color
#375A51 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.043 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.031 away. White text reads best on it, at 7.65:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.74:1 |
| White text | 7.65:1 |
Values
| HEX | #375A51 |
| RGB | rgb(55, 90, 81) |
| HSL | hsl(165, 24%, 28%) |
| OKLCH | oklch(43.8% 0.043 176.1) |
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 #375A51 | 7.65:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #375A51 | 2.74:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #375A51 text on white | 7.65:1 | AAA | Lc 86.5 | Fine for body text |
| #375A51 text on black | 2.74:1 | Fails | Lc -15.6 | 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
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D0DCD9
oklch(88.5% 0.014 179.4)
-
Step 300
300
#B0C6C0
oklch(80.8% 0.025 177.5)
-
Step 400
400
#87A9A0
oklch(70.7% 0.04 177.2)
-
Step 500
500
#689488
oklch(63.1% 0.051 175.8)
-
Step 600
600
#4E7E72
oklch(55.5% 0.056 176.5)
-
Step 700
700
#3F6B60
oklch(49.2% 0.052 176.3)
-
Step 800
800 (this color)
#375A51
oklch(43.8% 0.043 176.1)
-
Step 900
900
#2E4841
oklch(37.8% 0.034 175.7)
-
Step 950
950
#1B2A26
oklch(27% 0.022 176.2)
#375A51 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) | #585651 | 0.047 |
| Deuteranopia (no green cones) | #515252 | 0.042 |
| Tritanopia (no blue cones) | #2C5B57 | 0.013 |
| Achromatopsia (no color) | #535353 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375A51
#375A51
oklch(43.8% 0.043 176.1)
- #664853
#664853
oklch(43.8% 0.044 355.3)
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 #375A51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.038
- Deep Teal #00555A ΔE 0.046
- Petrol #005F6A ΔE 0.047
- Dark Blue Green #005249 ΔE 0.052
- Pine #2B5D34 ΔE 0.052
- Dark Aqua #05696B ΔE 0.054
- Spruce #0A5F38 ΔE 0.061
Use #375A51 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.