#5F5FB8
Closest named color: Iris (#6258C4). oklch(53% 0.137 280.7), rgb(95, 95, 184).
Aa
White text reads best on this color (5.50:1).
About this color
#5F5FB8 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 53%, its chroma 0.137 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.027 away. White text reads best on it, at 5.50:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #5F5FB8 |
| RGB | rgb(95, 95, 184) |
| HSL | hsl(240, 39%, 55%) |
| OKLCH | oklch(53% 0.137 280.7) |
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 #5F5FB8 | 5.50:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #5F5FB8 | 3.81:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #5F5FB8 text on white | 5.50:1 | AA | Lc 77.3 | Fine for body text |
| #5F5FB8 text on black | 3.81:1 | AA large text | Lc -24.5 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7F0
oklch(88.5% 0.034 280.2)
-
Step 300
300
#B9BDE8
oklch(81% 0.061 280.8)
-
Step 400
400
#959ADD
oklch(70.8% 0.098 280.3)
-
Step 500
500
#7C7FD4
oklch(63.1% 0.127 280.6)
-
Step 600
600 (this color)
#5F5FB8
oklch(53% 0.137 280.7)
-
Step 700
700
#5555A6
oklch(49.1% 0.127 280.7)
-
Step 800
800
#464687
oklch(42.8% 0.106 281)
-
Step 900
900
#3A3B6C
oklch(37.6% 0.083 280.8)
-
Step 950
950
#22233F
oklch(27% 0.052 280.8)
#5F5FB8 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) | #386CBB | 0.053 |
| Deuteranopia (no green cones) | #3166B6 | 0.054 |
| Tritanopia (no blue cones) | #3F7283 | 0.118 |
| Achromatopsia (no color) | #696969 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F5FB8
#5F5FB8
oklch(53% 0.137 280.7)
- #7A6D00
#7A6D00
oklch(53% 0.111 101.1)
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 #5F5FB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.027
- Slate Blue #6A5ACD ΔE 0.039
- Dark Periwinkle #665FD1 ΔE 0.040
- Light Indigo #6D5ACF ΔE 0.044
- French Blue #436BAD ΔE 0.050
- Mid Blue #276AB3 ΔE 0.064
- Warm Blue #4B57DB ΔE 0.066
- Dusky Blue #475F94 ΔE 0.068
Use #5F5FB8 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.