#5F579B
Closest named color: Twilight (#4E518B). oklch(49.6% 0.106 287.2), rgb(95, 87, 155).
Aa
White text reads best on this color (6.31:1).
About this color
#5F579B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.106 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.041 away. White text reads best on it, at 6.31:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.32:1 |
| White text | 6.31:1 |
Values
| HEX | #5F579B |
| RGB | rgb(95, 87, 155) |
| HSL | hsl(247, 28%, 47%) |
| OKLCH | oklch(49.6% 0.106 287.2) |
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 #5F579B | 6.31:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #5F579B | 3.32:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #5F579B text on white | 6.31:1 | AA | Lc 81.3 | Fine for body text |
| #5F579B text on black | 3.32:1 | AA large text | Lc -20.5 | 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 700.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E9F4
oklch(93.7% 0.015 286.1)
-
Step 200
200
#D7D7EC
oklch(88.6% 0.029 285.8)
-
Step 300
300
#BEBCE1
oklch(80.9% 0.052 287.7)
-
Step 400
400
#9D99D2
oklch(70.7% 0.083 287.3)
-
Step 500
500
#867FC6
oklch(63.2% 0.105 287.5)
-
Step 600
600
#7067B2
oklch(55.5% 0.114 287.6)
-
Step 700
700 (this color)
#5F579B
oklch(49.6% 0.106 287.2)
-
Step 800
800
#4C467C
oklch(42.6% 0.088 287.1)
-
Step 900
900
#3F3B64
oklch(37.6% 0.069 287)
-
Step 950
950
#25233B
oklch(27% 0.044 286.9)
#5F579B 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) | #40619E | 0.047 |
| Deuteranopia (no green cones) | #3F5E99 | 0.046 |
| Tritanopia (no blue cones) | #4F6471 | 0.090 |
| Achromatopsia (no color) | #606060 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F579B
#5F579B
oklch(49.6% 0.106 287.2)
- #696600
#696600
oklch(49.7% 0.107 107.7)
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 #5F579B, closest first.
No curated palette has a color within ΔE 0.04 of #5F579B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.041
- Dusky Blue #475F94 ΔE 0.042
- Dusk #4E5481 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.053
- French Blue #436BAD ΔE 0.063
- Denim #3B638C ΔE 0.065
- Iris #6258C4 ΔE 0.065
- Dusty Grape #545775 ΔE 0.066
Use #5F579B 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.