#376F9E
Closest named color: Muted Blue (#3B719F). oklch(52.5% 0.095 246.3), rgb(55, 111, 158).
Aa
White text reads best on this color (5.34:1).
About this color
#376F9E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.095 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.007 away. White text reads best on it, at 5.34:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.92:1 |
| White text | 5.34:1 |
Values
| HEX | #376F9E |
| RGB | rgb(55, 111, 158) |
| HSL | hsl(207, 48%, 42%) |
| OKLCH | oklch(52.5% 0.095 246.3) |
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 #376F9E | 5.34:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #376F9E | 3.92:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #376F9E text on white | 5.34:1 | AA | Lc 76.4 | Fine for body text |
| #376F9E text on black | 3.92:1 | AA large text | Lc -25.4 | 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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300
#ABC4DB
oklch(80.9% 0.042 246.1)
-
Step 400
400
#7DA5C9
oklch(70.6% 0.069 246.1)
-
Step 500
500
#5B8FBC
oklch(63.2% 0.088 245.9)
-
Step 600
600 (this color)
#376F9E
oklch(52.5% 0.095 246.3)
-
Step 700
700
#326590
oklch(49.1% 0.088 246.3)
-
Step 800
800
#2A5275
oklch(42.6% 0.074 247)
-
Step 900
900
#27445E
oklch(37.6% 0.057 247)
-
Step 950
950
#172837
oklch(26.9% 0.036 246.3)
#376F9E 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) | #5A70A0 | 0.039 |
| Deuteranopia (no green cones) | #4C669D | 0.031 |
| Tritanopia (no blue cones) | #007A7F | 0.073 |
| Achromatopsia (no color) | #6B6B6B | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #376F9E
#376F9E
oklch(52.5% 0.095 246.3)
- #8F5E27
#8F5E27
oklch(52.5% 0.095 65.9)
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 #376F9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.007
- Flat Blue #3C73A8 ΔE 0.019
- Ocean Blue #03719C ΔE 0.026
- Dull Blue #49759C ΔE 0.028
- French Blue #436BAD ΔE 0.031
- Sea Blue #047495 ΔE 0.034
- Nice Blue #107AB0 ΔE 0.039
- Metallic Blue #4F738E ΔE 0.039
Use #376F9E 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.