#375891
Closest named color: Denim Blue (#3B5B92). oklch(46.4% 0.101 260.7), rgb(55, 88, 145).
Aa
White text reads best on this color (7.07:1).
About this color
#375891 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.101 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.010 away. White text reads best on it, at 7.07:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #375891 |
| RGB | rgb(55, 88, 145) |
| HSL | hsl(218, 45%, 39%) |
| OKLCH | oklch(46.4% 0.101 260.7) |
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 #375891 | 7.07:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #375891 | 2.96:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #375891 text on white | 7.07:1 | AAA | Lc 84.4 | Fine for body text |
| #375891 text on black | 2.96:1 | Fails | Lc -17.6 | 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 700.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#CFDAEC
oklch(88.5% 0.028 260.3)
-
Step 300
300
#AFC2E1
oklch(81% 0.049 260.2)
-
Step 400
400
#85A1D2
oklch(70.6% 0.079 261.4)
-
Step 500
500
#668AC6
oklch(63.2% 0.1 260.3)
-
Step 600
600
#4E73B3
oklch(55.7% 0.109 260.8)
-
Step 700
700 (this color)
#375891
oklch(46.4% 0.101 260.7)
-
Step 800
800
#344E7D
oklch(42.6% 0.085 261.5)
-
Step 900
900
#2D4164
oklch(37.6% 0.066 261.1)
-
Step 950
950
#1B263B
oklch(26.9% 0.042 262.7)
#375891 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) | #405D93 | 0.019 |
| Deuteranopia (no green cones) | #335590 | 0.010 |
| Tritanopia (no blue cones) | #00656D | 0.087 |
| Achromatopsia (no color) | #585858 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375891
#375891
oklch(46.4% 0.101 260.7)
- #745200
#745200
oklch(46.3% 0.096 80.9)
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 #375891, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.010
- Light Navy Blue #2E5A88 ΔE 0.020
- Dusk Blue #26538D ΔE 0.025
- Dusky Blue #475F94 ΔE 0.030
- Twilight #4E518B ΔE 0.033
- Denim #3B638C ΔE 0.036
- Dusk #4E5481 ΔE 0.037
- Light Navy #155084 ΔE 0.046
Use #375891 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.