#375954
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43.6% 0.041 184.2), rgb(55, 89, 84).
Aa
White text reads best on this color (7.72:1).
About this color
#375954 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.041 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.034 away. White text reads best on it, at 7.72:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.71:1 |
| White text | 7.72:1 |
Values
| HEX | #375954 |
| RGB | rgb(55, 89, 84) |
| HSL | hsl(171, 24%, 28%) |
| OKLCH | oklch(43.6% 0.041 184.2) |
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 #375954 | 7.72:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #375954 | 2.71:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #375954 text on white | 7.72:1 | AAA | Lc 86.8 | Fine for body text |
| #375954 text on black | 2.71:1 | Fails | Lc -15.3 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCDA
oklch(88.5% 0.013 185.1)
-
Step 300
300
#B1C6C2
oklch(81% 0.024 183)
-
Step 400
400
#87A9A3
oklch(70.8% 0.038 183.3)
-
Step 500
500
#68938D
oklch(63% 0.048 185.3)
-
Step 600
600
#4F7E77
oklch(55.7% 0.053 184)
-
Step 700
700
#3F6A64
oklch(49.1% 0.049 184.5)
-
Step 800
800 (this color)
#375954
oklch(43.6% 0.041 184.2)
-
Step 900
900
#2E4743
oklch(37.6% 0.032 183.5)
-
Step 950
950
#1B2A27
oklch(27% 0.021 180.8)
#375954 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) | #565554 | 0.044 |
| Deuteranopia (no green cones) | #505154 | 0.041 |
| Tritanopia (no blue cones) | #2B5A57 | 0.012 |
| Achromatopsia (no color) | #535353 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375954
#375954
oklch(43.6% 0.041 184.2)
- #65484F
#65484F
oklch(43.5% 0.041 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 #375954, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.035
- Deep Teal #00555A ΔE 0.043
- Petrol #005F6A ΔE 0.044
- Dark Blue Green #005249 ΔE 0.052
- Dark Aqua #05696B ΔE 0.055
- Pine #2B5D34 ΔE 0.059
- YInMn Blue #415A77 ΔE 0.061
Use #375954 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.