#595B88
Closest named color: Dusk (#4E5481). oklch(48.9% 0.072 281.4), rgb(89, 91, 136).
Aa
White text reads best on this color (6.40:1).
About this color
#595B88 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.072 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.029 away. White text reads best on it, at 6.40:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 3.27:1 |
| White text | 6.40:1 |
Values
| HEX | #595B88 |
| RGB | rgb(89, 91, 136) |
| HSL | hsl(237, 21%, 44%) |
| OKLCH | oklch(48.9% 0.072 281.4) |
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 #595B88 | 6.40:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #595B88 | 3.27:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #595B88 text on white | 6.40:1 | AA | Lc 81.8 | Fine for body text |
| #595B88 text on black | 3.27:1 | AA large text | Lc -20.1 | 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 700.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E6
oklch(88.5% 0.019 279.5)
-
Step 300
300
#BCBED7
oklch(80.8% 0.035 282)
-
Step 400
400
#9A9DC3
oklch(70.7% 0.055 281.3)
-
Step 500
500
#8285B4
oklch(63.2% 0.071 281.3)
-
Step 600
600
#6B6EA0
oklch(55.6% 0.077 280.9)
-
Step 700
700 (this color)
#595B88
oklch(48.9% 0.072 281.4)
-
Step 800
800
#494B6F
oklch(42.7% 0.06 281.1)
-
Step 900
900
#3D3F5A
oklch(37.8% 0.046 280.7)
-
Step 950
950
#242535
oklch(27.1% 0.03 281.4)
#595B88 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) | #4D608A | 0.020 |
| Deuteranopia (no green cones) | #4B5D87 | 0.020 |
| Tritanopia (no blue cones) | #4D636B | 0.062 |
| Achromatopsia (no color) | #5F5F5F | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #595B88
#595B88
oklch(48.9% 0.072 281.4)
- #69612E
#69612E
oklch(48.8% 0.072 100.5)
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 #595B88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.030
- Dusty Grape #545775 ΔE 0.032
- Twilight #4E518B ΔE 0.036
- Denim #3B638C ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.042
- YInMn Blue #415A77 ΔE 0.045
- Slate #516572 ΔE 0.054
Use #595B88 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.