#36367E
Closest named color: Dark Slate Blue (#483D8B). oklch(37.6% 0.119 279), rgb(54, 54, 126).
Aa
White text reads best on this color (10.57:1).
About this color
#36367E is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.119 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.042 away. White text reads best on it, at 10.57:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.57:1 |
Values
| HEX | #36367E |
| RGB | rgb(54, 54, 126) |
| HSL | hsl(240, 40%, 35%) |
| OKLCH | oklch(37.6% 0.119 279) |
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 #36367E | 10.57:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #36367E | 1.98:1 | Fails | Lc 9.7 | Not readable |
| #36367E text on white | 10.57:1 | AAA | Lc 94.3 | Preferred for body text |
| #36367E text on black | 1.98:1 | Fails | Lc -8.3 | Not readable |
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 900.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D6FA
oklch(88.4% 0.05 279.1)
-
Step 300
300
#B4BBFA
oklch(80.9% 0.089 279.3)
-
Step 400
400
#8E95F7
oklch(70.6% 0.142 279)
-
Step 500
500
#7577F4
oklch(63% 0.183 279.1)
-
Step 600
600
#605CE3
oklch(55.6% 0.199 279)
-
Step 700
700
#504BC5
oklch(49.1% 0.184 279)
-
Step 800
800
#413E9F
oklch(42.6% 0.153 279.1)
-
Step 900
900 (this color)
#36367E
oklch(37.6% 0.119 279)
-
Step 950
950
#20214A
oklch(27.1% 0.074 279.2)
#36367E 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) | #064280 | 0.051 |
| Deuteranopia (no green cones) | #003C7C | 0.051 |
| Tritanopia (no blue cones) | #124754 | 0.104 |
| Achromatopsia (no color) | #3F3F3F | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #36367E
#36367E
oklch(37.6% 0.119 279)
- #4C4100
#4C4100
oklch(37.5% 0.078 98.3)
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 #36367E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.042
- Twilight Blue #0A437A ΔE 0.053
- Blueberry #464196 ΔE 0.056
- Cobalt #1E488F ΔE 0.056
- Marine Blue #01386A ΔE 0.065
- Light Navy #155084 ΔE 0.075
- Prussian Blue #1D3557 ΔE 0.078
- Sapphire #2138AB ΔE 0.078
Use #36367E 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.