#363AA0
Closest named color: Sapphire (#2138AB). oklch(41.2% 0.162 275), rgb(54, 58, 160).
Aa
White text reads best on this color (9.25:1).
About this color
#363AA0 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.162 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.032 away. White text reads best on it, at 9.25:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #363AA0 |
| RGB | rgb(54, 58, 160) |
| HSL | hsl(238, 50%, 42%) |
| OKLCH | oklch(41.2% 0.162 275) |
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 #363AA0 | 9.25:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #363AA0 | 2.26:1 | Fails | Lc 13.1 | Not readable |
| #363AA0 text on white | 9.25:1 | AAA | Lc 90.8 | Preferred for body text |
| #363AA0 text on black | 2.26:1 | Fails | Lc -11.5 | 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 800.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CED7FD
oklch(88.4% 0.053 274.8)
-
Step 300
300
#AEBCFE
oklch(80.8% 0.095 274.8)
-
Step 400
400
#8697FE
oklch(70.8% 0.151 274.8)
-
Step 500
500
#6B78FC
oklch(63.1% 0.194 275.1)
-
Step 600
600
#565DEB
oklch(55.7% 0.21 275.1)
-
Step 700
700
#474BCC
oklch(49.1% 0.195 275.2)
-
Step 800
800 (this color)
#363AA0
oklch(41.2% 0.162 275)
-
Step 900
900
#313783
oklch(37.8% 0.126 275.2)
-
Step 950
950
#1C214D
oklch(27.1% 0.08 274.8)
#363AA0 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) | #004CA3 | 0.053 |
| Deuteranopia (no green cones) | #00439E | 0.044 |
| Tritanopia (no blue cones) | #005467 | 0.134 |
| Achromatopsia (no color) | #474747 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #363AA0
#363AA0
oklch(41.2% 0.162 275)
- #594A00
#594A00
oklch(41.2% 0.085 95.7)
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 #363AA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.032
- Blueberry #464196 ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.046
- Cobalt #1E488F ΔE 0.051
- Indigo Blue #3A18B1 ΔE 0.060
- Majorelle Blue #3F37C9 ΔE 0.067
- Blue Blue #2242C7 ΔE 0.068
- Imperial Purple #480CA8 ΔE 0.071
Use #363AA0 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.