#376991
Closest named color: Denim (#3B638C). oklch(50.4% 0.084 244.7), rgb(55, 105, 145).
Aa
White text reads best on this color (5.84:1).
About this color
#376991 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.084 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.018 away. White text reads best on it, at 5.84:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.59:1 |
| White text | 5.84:1 |
Values
| HEX | #376991 |
| RGB | rgb(55, 105, 145) |
| HSL | hsl(207, 45%, 39%) |
| OKLCH | oklch(50.4% 0.084 244.7) |
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 #376991 | 5.84:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #376991 | 3.59:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #376991 text on white | 5.84:1 | AA | Lc 79.1 | Fine for body text |
| #376991 text on black | 3.59:1 | AA large text | Lc -22.7 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ABC4DA
oklch(80.9% 0.041 244.9)
-
Step 400
400
#7EA5C7
oklch(70.6% 0.066 245.2)
-
Step 500
500
#5D8FB9
oklch(63.2% 0.083 245)
-
Step 600
600
#4279A5
oklch(55.8% 0.09 244.6)
-
Step 700
700 (this color)
#376991
oklch(50.4% 0.084 244.7)
-
Step 800
800
#2B5372
oklch(42.7% 0.069 243.8)
-
Step 900
900
#27455C
oklch(37.8% 0.053 243)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#376991 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) | #586A93 | 0.039 |
| Deuteranopia (no green cones) | #4B6190 | 0.030 |
| Tritanopia (no blue cones) | #007377 | 0.066 |
| Achromatopsia (no color) | #656565 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #376991
#376991
oklch(50.4% 0.084 244.7)
- #855A2C
#855A2C
oklch(50.4% 0.084 65.7)
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 #376991, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.018
- Muted Blue #3B719F ΔE 0.030
- Peacock Blue #016795 ΔE 0.031
- Ocean Blue #03719C ΔE 0.032
- Dusky Blue #475F94 ΔE 0.034
- Sea Blue #047495 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.042
- Flat Blue #3C73A8 ΔE 0.043
Use #376991 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.