#375A88
Closest named color: Light Navy Blue (#2E5A88). oklch(46.3% 0.086 255.8), rgb(55, 90, 136).
Aa
White text reads best on this color (7.04:1).
About this color
#375A88 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.086 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.009 away. White text reads best on it, at 7.04:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.98:1 |
| White text | 7.04:1 |
Values
| HEX | #375A88 |
| RGB | rgb(55, 90, 136) |
| HSL | hsl(214, 42%, 37%) |
| OKLCH | oklch(46.3% 0.086 255.8) |
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 #375A88 | 7.04:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #375A88 | 2.98:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #375A88 text on white | 7.04:1 | AAA | Lc 84.3 | Fine for body text |
| #375A88 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#CFDAE9
oklch(88.5% 0.024 256.1)
-
Step 300
300
#AFC2DC
oklch(80.8% 0.042 256.3)
-
Step 400
400
#85A3CA
oklch(70.7% 0.066 255.2)
-
Step 500
500
#678CBC
oklch(63.2% 0.084 255.2)
-
Step 600
600
#4E75A9
oklch(55.6% 0.093 256)
-
Step 700
700 (this color)
#375A88
oklch(46.3% 0.086 255.8)
-
Step 800
800
#345075
oklch(42.6% 0.071 255.8)
-
Step 900
900
#2E435F
oklch(37.8% 0.055 255.9)
-
Step 950
950
#1B2737
oklch(26.9% 0.034 255.8)
#375A88 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) | #475D8A | 0.023 |
| Deuteranopia (no green cones) | #3C5587 | 0.015 |
| Tritanopia (no blue cones) | #00646B | 0.073 |
| Achromatopsia (no color) | #595959 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375A88
#375A88
oklch(46.3% 0.086 255.8)
- #745117
#745117
oklch(46.2% 0.086 75.6)
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 #375A88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.009
- Denim Blue #3B5B92 ΔE 0.017
- Denim #3B638C ΔE 0.028
- YInMn Blue #415A77 ΔE 0.030
- Dusk Blue #26538D ΔE 0.031
- Dusky Blue #475F94 ΔE 0.031
- Dusk #4E5481 ΔE 0.032
- Twilight #4E518B ΔE 0.038
Use #375A88 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.