#375768
Closest named color: YInMn Blue (#415A77). oklch(43.9% 0.047 232.5), rgb(55, 87, 104).
Aa
White text reads best on this color (7.70:1).
About this color
#375768 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.047 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.029 away. White text reads best on it, at 7.70:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.72:1 |
| White text | 7.70:1 |
Values
| HEX | #375768 |
| RGB | rgb(55, 87, 104) |
| HSL | hsl(201, 31%, 31%) |
| OKLCH | oklch(43.9% 0.047 232.5) |
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 #375768 | 7.70:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #375768 | 2.72:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #375768 text on white | 7.70:1 | AAA | Lc 86.7 | Fine for body text |
| #375768 text on black | 2.72:1 | Fails | Lc -15.4 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE2
oklch(88.5% 0.015 235.4)
-
Step 300
300
#B0C4D0
oklch(80.9% 0.028 234.1)
-
Step 400
400
#86A6B8
oklch(70.7% 0.044 232.8)
-
Step 500
500
#6790A6
oklch(63.1% 0.056 232.2)
-
Step 600
600
#4E7A91
oklch(55.7% 0.06 232.1)
-
Step 700
700
#3E667C
oklch(49% 0.057 233.7)
-
Step 800
800 (this color)
#375768
oklch(43.9% 0.047 232.5)
-
Step 900
900
#2D4552
oklch(37.6% 0.037 232.7)
-
Step 950
950
#1B2930
oklch(27.1% 0.023 230.3)
#375768 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) | #4F5669 | 0.032 |
| Deuteranopia (no green cones) | #485168 | 0.027 |
| Tritanopia (no blue cones) | #225C5C | 0.036 |
| Achromatopsia (no color) | #535353 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375768
#375768
oklch(43.9% 0.047 232.5)
- #674B3A
#674B3A
oklch(43.8% 0.047 52.4)
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 #375768, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.029
- Petrol #005F6A ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.046
- Dusty Grape #545775 ΔE 0.047
- Deep Teal #00555A ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.052
- Dusk #4E5481 ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.058
Use #375768 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.