#375CA1
Closest named color: Denim Blue (#3B5B92). oklch(48.3% 0.119 261.7), rgb(55, 92, 161).
Aa
White text reads best on this color (6.54:1).
About this color
#375CA1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.119 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.024 away. White text reads best on it, at 6.54:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.20:1 |
| White text | 6.54:1 |
Values
| HEX | #375CA1 |
| RGB | rgb(55, 92, 161) |
| HSL | hsl(219, 49%, 42%) |
| OKLCH | oklch(48.3% 0.119 261.7) |
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 #375CA1 | 6.54:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #375CA1 | 3.20:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #375CA1 text on white | 6.54:1 | AA | Lc 82.2 | Fine for body text |
| #375CA1 text on black | 3.20:1 | AA large text | Lc -19.7 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ACC1E7
oklch(80.8% 0.059 262.3)
-
Step 400
400
#81A1DB
oklch(70.8% 0.093 262)
-
Step 500
500
#6189D1
oklch(63.2% 0.118 261.5)
-
Step 600
600
#4871BE
oklch(55.6% 0.129 261.9)
-
Step 700
700 (this color)
#375CA1
oklch(48.3% 0.119 261.7)
-
Step 800
800
#304D85
oklch(42.7% 0.1 262.3)
-
Step 900
900
#2A416A
oklch(37.7% 0.076 261.3)
-
Step 950
950
#19263E
oklch(27% 0.049 262)
#375CA1 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) | #3C63A4 | 0.021 |
| Deuteranopia (no green cones) | #2C59A0 | 0.015 |
| Tritanopia (no blue cones) | #006C76 | 0.100 |
| Achromatopsia (no color) | #5D5D5D | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375CA1
#375CA1
oklch(48.3% 0.119 261.7)
- #7A5800
#7A5800
oklch(48.3% 0.1 82.4)
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 #375CA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.024
- Dusky Blue #475F94 ΔE 0.030
- Light Navy Blue #2E5A88 ΔE 0.042
- Denim #3B638C ΔE 0.044
- Mid Blue #276AB3 ΔE 0.044
- Dusk Blue #26538D ΔE 0.045
- French Blue #436BAD ΔE 0.048
- Twilight #4E518B ΔE 0.048
Use #375CA1 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.