#375A4F
Closest named color: Dark Green Blue (#1F6357). oklch(43.7% 0.045 172.3), rgb(55, 90, 79).
Aa
White text reads best on this color (7.67:1).
About this color
#375A4F is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.045 and its hue 172°. 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 7.67:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #375A4F |
| RGB | rgb(55, 90, 79) |
| HSL | hsl(161, 24%, 28%) |
| OKLCH | oklch(43.7% 0.045 172.3) |
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 #375A4F | 7.67:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #375A4F | 2.73:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #375A4F text on white | 7.67:1 | AAA | Lc 86.6 | Fine for body text |
| #375A4F text on black | 2.73:1 | Fails | Lc -15.5 | 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
#D0DCD8
oklch(88.4% 0.014 174.1)
-
Step 300
300
#B0C6BF
oklch(80.8% 0.026 174.6)
-
Step 400
400
#87A99E
oklch(70.6% 0.041 173.4)
-
Step 500
500
#689486
oklch(63% 0.053 172.8)
-
Step 600
600
#4E7F70
oklch(55.7% 0.058 172.7)
-
Step 700
700
#3F6B5D
oklch(49.1% 0.054 171.7)
-
Step 800
800 (this color)
#375A4F
oklch(43.7% 0.045 172.3)
-
Step 900
900
#2E483F
oklch(37.8% 0.036 170.7)
-
Step 950
950
#1B2A25
oklch(27% 0.022 171.9)
#375A4F 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) | #58564F | 0.047 |
| Deuteranopia (no green cones) | #525150 | 0.045 |
| Tritanopia (no blue cones) | #2D5B57 | 0.015 |
| Achromatopsia (no color) | #535353 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375A4F
#375A4F
oklch(43.7% 0.045 172.3)
- #664854
#664854
oklch(43.8% 0.045 353.3)
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 #375A4F, 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 0.039
- Deep Teal #00555A ΔE 0.047
- Petrol #005F6A ΔE 0.049
- Pine #2B5D34 ΔE 0.049
- Dark Blue Green #005249 ΔE 0.052
- Dark Aqua #05696B ΔE 0.056
- Spruce #0A5F38 ΔE 0.058
Use #375A4F 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.