#375775
Closest named color: YInMn Blue (#415A77). oklch(44.5% 0.062 247.8), rgb(55, 87, 117).
Aa
White text reads best on this color (7.54:1).
About this color
#375775 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.062 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.016 away. White text reads best on it, at 7.54:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #375775 |
| RGB | rgb(55, 87, 117) |
| HSL | hsl(209, 36%, 34%) |
| OKLCH | oklch(44.5% 0.062 247.8) |
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 #375775 | 7.54:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #375775 | 2.78:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #375775 text on white | 7.54:1 | AAA | Lc 86.1 | Fine for body text |
| #375775 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EBF1
oklch(93.7% 0.01 247.9)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AFC3D8
oklch(80.9% 0.037 249.6)
-
Step 400
400
#84A4C4
oklch(70.6% 0.059 248.7)
-
Step 500
500
#658EB5
oklch(63.2% 0.074 247.8)
-
Step 600
600
#4B77A1
oklch(55.5% 0.082 248.4)
-
Step 700
700
#3C6489
oklch(49% 0.075 247.8)
-
Step 800
800 (this color)
#375775
oklch(44.5% 0.062 247.8)
-
Step 900
900
#2C445A
oklch(37.7% 0.048 247.1)
-
Step 950
950
#1A2835
oklch(27% 0.031 247.2)
#375775 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) | #4B5876 | 0.027 |
| Deuteranopia (no green cones) | #435174 | 0.022 |
| Tritanopia (no blue cones) | #185E61 | 0.053 |
| Achromatopsia (no color) | #545454 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375775
#375775
oklch(44.5% 0.062 247.8)
- #6B4D2C
#6B4D2C
oklch(44.5% 0.063 67.7)
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 #375775, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.016
- Light Navy Blue #2E5A88 ΔE 0.031
- Dusk #4E5481 ΔE 0.039
- Dusty Grape #545775 ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.044
- Denim #3B638C ΔE 0.047
- Dusk Blue #26538D ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.048
Use #375775 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.