#367CA3
Closest named color: Cerulean (#457B9D). oklch(55.9% 0.092 236.2), rgb(54, 124, 163).
Aa
White text reads best on this color (4.59:1).
About this color
#367CA3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.092 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.014 away. White text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.56:1 |
| White text | 4.59:1 |
Values
| HEX | #367CA3 |
| RGB | rgb(54, 124, 163) |
| HSL | hsl(201, 50%, 43%) |
| OKLCH | oklch(55.9% 0.092 236.2) |
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 #367CA3 | 4.59:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #367CA3 | 4.56:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #367CA3 text on white | 4.59:1 | AA | Lc 71.7 | Content text, not long reading |
| #367CA3 text on black | 4.56:1 | AA | Lc -30.0 | 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
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CBDCE7
oklch(88.5% 0.024 236)
-
Step 300
300
#A8C5D8
oklch(80.8% 0.041 236.8)
-
Step 400
400
#78A8C5
oklch(70.8% 0.067 235.5)
-
Step 500
500
#5391B6
oklch(63% 0.085 236.5)
-
Step 600
600 (this color)
#367CA3
oklch(55.9% 0.092 236.2)
-
Step 700
700
#27688B
oklch(49.2% 0.086 236)
-
Step 800
800
#225571
oklch(42.8% 0.071 235.9)
-
Step 900
900
#22465B
oklch(37.7% 0.055 236.3)
-
Step 950
950
#142935
oklch(26.9% 0.035 235.2)
#367CA3 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) | #6A7BA5 | 0.056 |
| Deuteranopia (no green cones) | #5B70A2 | 0.047 |
| Tritanopia (no blue cones) | #008689 | 0.062 |
| Achromatopsia (no color) | #757575 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #367CA3
#367CA3
oklch(55.9% 0.092 236.2)
- #9D653B
#9D653B
oklch(55.8% 0.092 56.3)
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 #367CA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.014
- Dull Blue #49759C ΔE 0.024
- Stormy Blue #507B9C ΔE 0.025
- Nice Blue #107AB0 ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.029
- Muted Blue #3B719F ΔE 0.031
- Steel Blue #4682B4 ΔE 0.034
- Ocean #017B92 ΔE 0.038
Use #367CA3 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.