#375157
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.6% 0.033 213.6), rgb(55, 81, 87).
Aa
White text reads best on this color (8.47:1).
About this color
#375157 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.033 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.018 away. White text reads best on it, at 8.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.47:1 |
| White text | 8.47:1 |
Values
| HEX | #375157 |
| RGB | rgb(55, 81, 87) |
| HSL | hsl(191, 23%, 28%) |
| OKLCH | oklch(41.6% 0.033 213.6) |
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 #375157 | 8.47:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #375157 | 2.47:1 | Fails | Lc 14.8 | Not readable |
| #375157 text on white | 8.47:1 | AAA | Lc 89.2 | Fine for body text |
| #375157 text on black | 2.47:1 | Fails | Lc -13.1 | Not readable |
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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDD
oklch(88.5% 0.01 212.5)
-
Step 300
300
#B3C4C8
oklch(80.9% 0.019 213.4)
-
Step 400
400
#8CA6AC
oklch(70.7% 0.03 213.2)
-
Step 500
500
#6E9098
oklch(63.1% 0.04 213.7)
-
Step 600
600
#567A83
oklch(55.6% 0.043 215)
-
Step 700
700
#46676E
oklch(49.1% 0.04 212.3)
-
Step 800
800 (this color)
#375157
oklch(41.6% 0.033 213.6)
-
Step 900
900
#32454A
oklch(37.6% 0.025 215.7)
-
Step 950
950
#1D292B
oklch(27.1% 0.017 208.8)
#375157 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) | #4C4F57 | 0.030 |
| Deuteranopia (no green cones) | #474B57 | 0.028 |
| Tritanopia (no blue cones) | #2B5453 | 0.019 |
| Achromatopsia (no color) | #4D4D4D | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375157
#375157
oklch(41.6% 0.033 213.6)
- #5D4640
#5D4640
oklch(41.7% 0.033 35.1)
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 #375157, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.018
- Deep Teal #00555A ΔE 0.039
- Charcoal #264653 ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.044
- Dark Teal #014D4E ΔE 0.049
- Dark Blue Green #005249 ΔE 0.051
- Petrol #005F6A ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.052
Use #375157 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.