#375B53
Closest named color: Dark Green Blue (#1F6357). oklch(44.1% 0.044 178.5), rgb(55, 91, 83).
Aa
White text reads best on this color (7.54:1).
About this color
#375B53 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.044 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.029 away. White text reads best on it, at 7.54:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #375B53 |
| RGB | rgb(55, 91, 83) |
| HSL | hsl(167, 25%, 29%) |
| OKLCH | oklch(44.1% 0.044 178.5) |
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 #375B53 | 7.54:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #375B53 | 2.78:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #375B53 text on white | 7.54:1 | AAA | Lc 86.1 | Fine for body text |
| #375B53 text on black | 2.78:1 | Fails | Lc -15.9 | 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
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCD9
oklch(88.5% 0.014 179.4)
-
Step 300
300
#B0C6C1
oklch(80.8% 0.025 180.5)
-
Step 400
400
#86A9A1
oklch(70.6% 0.04 179.6)
-
Step 500
500
#66948A
oklch(63% 0.052 179.5)
-
Step 600
600
#4D7E74
oklch(55.5% 0.056 179.7)
-
Step 700
700
#3D6B61
oklch(49.2% 0.053 178.4)
-
Step 800
800 (this color)
#375B53
oklch(44.1% 0.044 178.5)
-
Step 900
900
#2D4842
oklch(37.8% 0.035 178.8)
-
Step 950
950
#1B2A26
oklch(27% 0.022 176.2)
#375B53 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) | #585753 | 0.046 |
| Deuteranopia (no green cones) | #525254 | 0.045 |
| Tritanopia (no blue cones) | #2B5C59 | 0.014 |
| Achromatopsia (no color) | #545454 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375B53
#375B53
oklch(44.1% 0.044 178.5)
- #674952
#674952
oklch(44.1% 0.043 359.3)
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 #375B53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.041
- Petrol #005F6A ΔE 0.044
- Deep Teal #00555A ΔE 0.047
- Dark Aqua #05696B ΔE 0.051
- Pine #2B5D34 ΔE 0.054
- Dark Blue Green #005249 ΔE 0.055
- Spruce #0A5F38 ΔE 0.062
Use #375B53 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.