#375E6D
Closest named color: YInMn Blue (#415A77). oklch(45.9% 0.05 224.7), rgb(55, 94, 109).
Aa
White text reads best on this color (7.03:1).
About this color
#375E6D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.050 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.027 away. White text reads best on it, at 7.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #375E6D |
| RGB | rgb(55, 94, 109) |
| HSL | hsl(197, 33%, 32%) |
| OKLCH | oklch(45.9% 0.05 224.7) |
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 #375E6D | 7.03:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #375E6D | 2.98:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #375E6D text on white | 7.03:1 | AAA | Lc 84.3 | Fine for body text |
| #375E6D text on black | 2.98:1 | Fails | Lc -17.7 | 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 700.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DBE0
oklch(88.5% 0.014 226.6)
-
Step 300
300
#B1C4CD
oklch(80.9% 0.024 227.8)
-
Step 400
400
#87A6B3
oklch(70.6% 0.039 225.3)
-
Step 500
500
#6990A0
oklch(63% 0.049 225.2)
-
Step 600
600
#4F7A8B
oklch(55.5% 0.054 224.9)
-
Step 700
700 (this color)
#375E6D
oklch(45.9% 0.05 224.7)
-
Step 800
800
#355460
oklch(42.7% 0.042 224.4)
-
Step 900
900
#2E454F
oklch(37.6% 0.033 226.9)
-
Step 950
950
#1B292E
oklch(27% 0.021 222)
#375E6D 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) | #565C6E | 0.040 |
| Deuteranopia (no green cones) | #4E566D | 0.036 |
| Tritanopia (no blue cones) | #1D6363 | 0.034 |
| Achromatopsia (no color) | #595959 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375E6D
#375E6D
oklch(45.9% 0.05 224.7)
- #704F40
#704F40
oklch(45.9% 0.051 45.4)
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 #375E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.027
- Petrol #005F6A ΔE 0.035
- Slate #516572 ΔE 0.041
- Dark Aqua #05696B ΔE 0.044
- Dusty Grape #545775 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.050
- Denim #3B638C ΔE 0.051
Use #375E6D 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.