#375C54
Closest named color: Dark Green Blue (#1F6357). oklch(44.4% 0.045 178.9), rgb(55, 92, 84).
Aa
White text reads best on this color (7.44:1).
About this color
#375C54 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.045 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.027 away. White text reads best on it, at 7.44:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.82:1 |
| White text | 7.44:1 |
Values
| HEX | #375C54 |
| RGB | rgb(55, 92, 84) |
| HSL | hsl(167, 25%, 29%) |
| OKLCH | oklch(44.4% 0.045 178.9) |
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 #375C54 | 7.44:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #375C54 | 2.82:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #375C54 text on white | 7.44:1 | AAA | Lc 85.8 | Fine for body text |
| #375C54 text on black | 2.82:1 | Fails | Lc -16.2 | 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
#E5ECEA
oklch(93.7% 0.008 177.3)
-
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
#85AAA1
oklch(70.8% 0.042 178.5)
-
Step 500
500
#65948A
oklch(63% 0.053 179.7)
-
Step 600
600
#4C7F74
oklch(55.7% 0.058 178.8)
-
Step 700
700
#3C6B61
oklch(49.1% 0.054 178.7)
-
Step 800
800 (this color)
#375C54
oklch(44.4% 0.045 178.9)
-
Step 900
900
#2D4842
oklch(37.8% 0.035 178.8)
-
Step 950
950
#1A2A27
oklch(27% 0.022 181.6)
#375C54 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) | #595854 | 0.047 |
| Deuteranopia (no green cones) | #535355 | 0.046 |
| Tritanopia (no blue cones) | #2B5D5A | 0.014 |
| Achromatopsia (no color) | #555555 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375C54
#375C54
oklch(44.4% 0.045 178.9)
- #694953
#694953
oklch(44.4% 0.046 358.7)
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 #375C54, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.044
- Petrol #005F6A ΔE 0.044
- Deep Teal #00555A ΔE 0.048
- Dark Aqua #05696B ΔE 0.049
- Pine #2B5D34 ΔE 0.054
- Dark Blue Green #005249 ΔE 0.057
- Spruce #0A5F38 ΔE 0.062
Use #375C54 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.