#6361D5
Closest named color: Dark Periwinkle (#665FD1). oklch(55.6% 0.173 279.9), rgb(99, 97, 213).
Aa
White text reads best on this color (4.99:1).
About this color
#6361D5 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.173 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.008 away. White text reads best on it, at 4.99:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.20:1 |
| White text | 4.99:1 |
Values
| HEX | #6361D5 |
| RGB | rgb(99, 97, 213) |
| HSL | hsl(241, 58%, 61%) |
| OKLCH | oklch(55.6% 0.173 279.9) |
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 #6361D5 | 4.99:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #6361D5 | 4.20:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #6361D5 text on white | 4.99:1 | AA | Lc 74.3 | Content text, not long reading |
| #6361D5 text on black | 4.20:1 | AA large text | Lc -27.4 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F6
oklch(88.6% 0.043 279.7)
-
Step 300
300
#B6BCF3
oklch(81% 0.078 279.7)
-
Step 400
400
#9297ED
oklch(70.7% 0.125 280.1)
-
Step 500
500
#787BE7
oklch(63.1% 0.159 279.6)
-
Step 600
600 (this color)
#6361D5
oklch(55.6% 0.173 279.9)
-
Step 700
700
#524FB9
oklch(49% 0.162 279.8)
-
Step 800
800
#434295
oklch(42.7% 0.133 279.7)
-
Step 900
900
#383877
oklch(37.6% 0.105 280.1)
-
Step 950
950
#212246
oklch(27.2% 0.066 279.9)
#6361D5 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) | #1774D9 | 0.075 |
| Deuteranopia (no green cones) | #006BD3 | 0.077 |
| Tritanopia (no blue cones) | #2F7B92 | 0.149 |
| Achromatopsia (no color) | #6F6F6F | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6361D5
#6361D5
oklch(55.6% 0.173 279.9)
- #847400
#847400
oklch(55.7% 0.116 99.7)
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 #6361D5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.008
- Slate Blue #6A5ACD ΔE 0.021
- Light Indigo #6D5ACF ΔE 0.022
- Iris #6258C4 ΔE 0.033
- Warm Blue #4B57DB ΔE 0.044
- Royal Blue #4169E1 ΔE 0.045
- Neon Blue #4361EE ΔE 0.055
- Medium Slate Blue #7B68EE ΔE 0.055
Use #6361D5 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.