#361FA5
Closest named color: Indigo Blue (#3A18B1). oklch(37.7% 0.197 279.1), rgb(54, 31, 165).
Aa
White text reads best on this color (11.07:1).
About this color
#361FA5 is a dark, vivid blue. In OKLCH its lightness is 38%, its chroma 0.197 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Indigo Blue (#3A18B1), ΔE 0.020 away. White text reads best on it, at 11.07:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Indigo Blue (#3A18B1) |
| Black text | 1.89:1 |
| White text | 11.07:1 |
Values
| HEX | #361FA5 |
| RGB | rgb(54, 31, 165) |
| HSL | hsl(250, 68%, 38%) |
| OKLCH | oklch(37.7% 0.197 279.1) |
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 #361FA5 | 11.07:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #361FA5 | 1.89:1 | Fails | Lc 9.5 | Not readable |
| #361FA5 text on white | 11.07:1 | AAA | Lc 94.4 | Preferred for body text |
| #361FA5 text on black | 1.89:1 | Fails | Lc -8.2 | 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
#E5E8FF
oklch(93.6% 0.031 279.9)
-
Step 200
200
#D0D6FF
oklch(88.5% 0.057 278.6)
-
Step 300
300
#B3BAFF
oklch(80.8% 0.098 279.5)
-
Step 400
400
#8D94FF
oklch(70.8% 0.155 278.8)
-
Step 500
500
#7474FF
oklch(63.2% 0.201 278.9)
-
Step 600
600
#604DFF
oklch(55.6% 0.25 279.3)
-
Step 700
700
#530DFF
oklch(49.1% 0.294 279.1)
-
Step 800
800
#430ED2
oklch(42.6% 0.252 279.1)
-
Step 900
900 (this color)
#361FA5
oklch(37.7% 0.197 279.1)
-
Step 950
950
#1E1660
oklch(26.9% 0.124 278.9)
#361FA5 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) | #0041A9 | 0.073 |
| Deuteranopia (no green cones) | #0036A3 | 0.058 |
| Tritanopia (no blue cones) | #004863 | 0.155 |
| Achromatopsia (no color) | #3C3C3C | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #361FA5
#361FA5
oklch(37.7% 0.197 279.1)
- #4C4200
#4C4200
oklch(37.8% 0.078 99.5)
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 #361FA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo Blue #3A18B1 ΔE 0.020
- Imperial Purple #480CA8 ΔE 0.036
- Sapphire #2138AB ΔE 0.050
- Ultramarine #2000B1 ΔE 0.052
- Chrysanthemum #560BAD ΔE 0.062
- Royal #0C1793 ΔE 0.069
- Cobalt Blue #030AA7 ΔE 0.072
- Violet Blue #510AC9 ΔE 0.073
Use #361FA5 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.