#375688
Closest named color: Light Navy Blue (#2E5A88). oklch(45.3% 0.09 259.6), rgb(55, 86, 136).
Aa
White text reads best on this color (7.37:1).
About this color
#375688 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.090 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.014 away. White text reads best on it, at 7.37:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #375688 |
| RGB | rgb(55, 86, 136) |
| HSL | hsl(217, 42%, 37%) |
| OKLCH | oklch(45.3% 0.09 259.6) |
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 #375688 | 7.37:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #375688 | 2.84:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #375688 text on white | 7.37:1 | AAA | Lc 85.5 | Fine for body text |
| #375688 text on black | 2.84:1 | Fails | Lc -16.6 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#ADC2E3
oklch(80.9% 0.052 259.4)
-
Step 400
400
#81A2D5
oklch(70.7% 0.084 258.9)
-
Step 500
500
#628ACA
oklch(63.1% 0.107 259.5)
-
Step 600
600
#4873B7
oklch(55.6% 0.117 259.2)
-
Step 700
700
#3A609E
oklch(49.2% 0.109 259.7)
-
Step 800
800 (this color)
#375688
oklch(45.3% 0.09 259.6)
-
Step 900
900
#2B4267
oklch(37.9% 0.07 259.6)
-
Step 950
950
#19273C
oklch(27.1% 0.044 258.3)
#375688 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) | #415A8A | 0.018 |
| Deuteranopia (no green cones) | #375287 | 0.012 |
| Tritanopia (no blue cones) | #006168 | 0.079 |
| Achromatopsia (no color) | #565656 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375688
#375688
oklch(45.3% 0.09 259.6)
- #704F09
#704F09
oklch(45.2% 0.09 79.5)
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 #375688, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.014
- Denim Blue #3B5B92 ΔE 0.021
- Dusk Blue #26538D ΔE 0.022
- Dusk #4E5481 ΔE 0.031
- Twilight #4E518B ΔE 0.033
- YInMn Blue #415A77 ΔE 0.035
- Light Navy #155084 ΔE 0.038
- Dusky Blue #475F94 ΔE 0.038
Use #375688 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.