#363889
Closest named color: Dark Slate Blue (#483D8B). oklch(38.8% 0.132 277.2), rgb(54, 56, 137).
Aa
White text reads best on this color (10.07:1).
About this color
#363889 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.132 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 10.07:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.07:1 |
Values
| HEX | #363889 |
| RGB | rgb(54, 56, 137) |
| HSL | hsl(239, 43%, 37%) |
| OKLCH | oklch(38.8% 0.132 277.2) |
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 #363889 | 10.07:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #363889 | 2.08:1 | Fails | Lc 10.9 | Not readable |
| #363889 text on white | 10.07:1 | AAA | Lc 93.1 | Preferred for body text |
| #363889 text on black | 2.08:1 | Fails | Lc -9.4 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E9FE
oklch(93.7% 0.029 277.2)
-
Step 200
200
#CFD7FE
oklch(88.6% 0.054 276.1)
-
Step 300
300
#B1BBFF
oklch(80.9% 0.097 277.5)
-
Step 400
400
#8A95FF
oklch(70.7% 0.154 277.2)
-
Step 500
500
#7075FF
oklch(63.1% 0.201 277.4)
-
Step 600
600
#5B58F0
oklch(55.6% 0.221 277.3)
-
Step 700
700
#4C47D1
oklch(49.2% 0.205 277.3)
-
Step 800
800
#3D3BA9
oklch(42.6% 0.171 277.1)
-
Step 900
900 (this color)
#363889
oklch(38.8% 0.132 277.2)
-
Step 950
950
#1E204E
oklch(27.1% 0.083 277.4)
#363889 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) | #00458C | 0.051 |
| Deuteranopia (no green cones) | #003E87 | 0.048 |
| Tritanopia (no blue cones) | #004B5B | 0.113 |
| Achromatopsia (no color) | #424242 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #363889
#363889
oklch(38.8% 0.132 277.2)
- #514400
#514400
oklch(38.8% 0.08 96.7)
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 #363889, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Blueberry #464196 ΔE 0.041
- Cobalt #1E488F ΔE 0.046
- Twilight Blue #0A437A ΔE 0.056
- Sapphire #2138AB ΔE 0.061
- Light Navy #155084 ΔE 0.071
- Dusk Blue #26538D ΔE 0.073
- Marine Blue #01386A ΔE 0.076
Use #363889 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.