#375C7B
Closest named color: YInMn Blue (#415A77). oklch(46.1% 0.066 245.2), rgb(55, 92, 123).
Aa
White text reads best on this color (7.04:1).
About this color
#375C7B is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.066 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.013 away. White text reads best on it, at 7.04:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.97:1 |
| White text | 7.04:1 |
Values
| HEX | #375C7B |
| RGB | rgb(55, 92, 123) |
| HSL | hsl(207, 38%, 35%) |
| OKLCH | oklch(46.1% 0.066 245.2) |
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 #375C7B | 7.04:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #375C7B | 2.97:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #375C7B text on white | 7.04:1 | AAA | Lc 84.3 | Fine for body text |
| #375C7B text on black | 2.97:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#D0DBE4
oklch(88.6% 0.017 242.5)
-
Step 300
300
#B0C3D4
oklch(80.8% 0.032 245.2)
-
Step 400
400
#86A5BF
oklch(70.8% 0.051 243.9)
-
Step 500
500
#688EAF
oklch(63.1% 0.065 245.3)
-
Step 600
600
#4F789B
oklch(55.7% 0.071 245.3)
-
Step 700
700 (this color)
#375C7B
oklch(46.1% 0.066 245.2)
-
Step 800
800
#35526B
oklch(42.7% 0.054 245.5)
-
Step 900
900
#2E4457
oklch(37.7% 0.043 245.3)
-
Step 950
950
#1B2833
oklch(27% 0.027 244.6)
#375C7B 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) | #4F5C7C | 0.030 |
| Deuteranopia (no green cones) | #46567A | 0.024 |
| Tritanopia (no blue cones) | #0E6367 | 0.054 |
| Achromatopsia (no color) | #595959 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375C7B
#375C7B
oklch(46.1% 0.066 245.2)
- #72502E
#72502E
oklch(46% 0.067 64.8)
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 #375C7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.013
- Light Navy Blue #2E5A88 ΔE 0.025
- Denim #3B638C ΔE 0.032
- Dusty Grape #545775 ΔE 0.039
- Dusk #4E5481 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.047
- Dusk Blue #26538D ΔE 0.049
Use #375C7B 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.