#376C87
Closest named color: Denim (#3B638C). oklch(50.6% 0.071 232.7), rgb(55, 108, 135).
Aa
White text reads best on this color (5.74:1).
About this color
#376C87 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.071 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.031 away. White text reads best on it, at 5.74:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #376C87 |
| RGB | rgb(55, 108, 135) |
| HSL | hsl(200, 42%, 37%) |
| OKLCH | oklch(50.6% 0.071 232.7) |
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 #376C87 | 5.74:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #376C87 | 3.65:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #376C87 text on white | 5.74:1 | AA | Lc 78.6 | Fine for body text |
| #376C87 text on black | 3.65:1 | AA large text | Lc -23.2 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#ACC5D3
oklch(80.9% 0.034 232.3)
-
Step 400
400
#7EA7BE
oklch(70.7% 0.056 233.1)
-
Step 500
500
#5D91AD
oklch(63.1% 0.07 233)
-
Step 600
600
#417B99
oklch(55.6% 0.077 233)
-
Step 700
700 (this color)
#376C87
oklch(50.6% 0.071 232.7)
-
Step 800
800
#2B556A
oklch(42.8% 0.058 232.1)
-
Step 900
900
#274656
oklch(37.7% 0.046 232.3)
-
Step 950
950
#172932
oklch(27% 0.029 231)
#376C87 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) | #5F6B88 | 0.047 |
| Deuteranopia (no green cones) | #546287 | 0.042 |
| Tritanopia (no blue cones) | #007375 | 0.050 |
| Achromatopsia (no color) | #666666 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #376C87
#376C87
oklch(50.6% 0.071 232.7)
- #85593E
#85593E
oklch(50.5% 0.071 52)
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 #376C87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.031
- Sea Blue #047495 ΔE 0.033
- Metallic Blue #4F738E ΔE 0.036
- Ocean Blue #03719C ΔE 0.038
- Muted Blue #3B719F ΔE 0.039
- Slate #516572 ΔE 0.041
- Peacock Blue #016795 ΔE 0.042
- Dull Blue #49759C ΔE 0.045
Use #376C87 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.