#5D5BD0
Closest named color: Dark Periwinkle (#665FD1). oklch(53.7% 0.176 279.5), rgb(93, 91, 208).
Aa
White text reads best on this color (5.42:1).
About this color
#5D5BD0 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.176 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.017 away. White text reads best on it, at 5.42:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 3.87:1 |
| White text | 5.42:1 |
Values
| HEX | #5D5BD0 |
| RGB | rgb(93, 91, 208) |
| HSL | hsl(241, 55%, 59%) |
| OKLCH | oklch(53.7% 0.176 279.5) |
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 #5D5BD0 | 5.42:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #5D5BD0 | 3.87:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #5D5BD0 text on white | 5.42:1 | AA | Lc 76.7 | Fine for body text |
| #5D5BD0 text on black | 3.87:1 | AA large text | Lc -25.1 | 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
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300
#B5BCF4
oklch(80.9% 0.079 278.9)
-
Step 400
400
#9197EE
oklch(70.7% 0.127 279.6)
-
Step 500
500
#777BE8
oklch(63.1% 0.161 279.1)
-
Step 600
600 (this color)
#5D5BD0
oklch(53.7% 0.176 279.5)
-
Step 700
700
#514FBA
oklch(49% 0.164 279.3)
-
Step 800
800
#424296
oklch(42.7% 0.134 279.1)
-
Step 900
900
#383878
oklch(37.7% 0.106 280)
-
Step 950
950
#202246
oklch(27.1% 0.066 278.6)
#5D5BD0 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) | #006ED4 | 0.076 |
| Deuteranopia (no green cones) | #0065CE | 0.073 |
| Tritanopia (no blue cones) | #23768D | 0.151 |
| Achromatopsia (no color) | #6A6A6A | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D5BD0
#5D5BD0
oklch(53.7% 0.176 279.5)
- #7E6E00
#7E6E00
oklch(53.7% 0.111 99.2)
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 #5D5BD0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.017
- Slate Blue #6A5ACD ΔE 0.020
- Iris #6258C4 ΔE 0.020
- Light Indigo #6D5ACF ΔE 0.024
- Warm Blue #4B57DB ΔE 0.033
- Royal Blue #4169E1 ΔE 0.049
- Neon Blue #4361EE ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.057
Use #5D5BD0 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.