#59599B
Closest named color: Dusky Blue (#475F94). oklch(49.5% 0.104 281.9), rgb(89, 89, 155).
Aa
White text reads best on this color (6.31:1).
About this color
#59599B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.104 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.032 away. White text reads best on it, at 6.31:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.32:1 |
| White text | 6.31:1 |
Values
| HEX | #59599B |
| RGB | rgb(89, 89, 155) |
| HSL | hsl(240, 27%, 48%) |
| OKLCH | oklch(49.5% 0.104 281.9) |
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 #59599B | 6.31:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #59599B | 3.32:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #59599B text on white | 6.31:1 | AA | Lc 81.3 | Fine for body text |
| #59599B text on black | 3.32:1 | AA large text | Lc -20.6 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D6D7EC
oklch(88.5% 0.029 283.6)
-
Step 300
300
#BBBDE1
oklch(80.9% 0.051 282.7)
-
Step 400
400
#989BD2
oklch(70.7% 0.08 281.7)
-
Step 500
500
#8081C6
oklch(63.1% 0.103 282.4)
-
Step 600
600
#696AB3
oklch(55.6% 0.112 281.5)
-
Step 700
700 (this color)
#59599B
oklch(49.5% 0.104 281.9)
-
Step 800
800
#48487D
oklch(42.7% 0.087 282.1)
-
Step 900
900
#3C3D64
oklch(37.8% 0.066 281.6)
-
Step 950
950
#23243B
oklch(27.1% 0.043 281.2)
#59599B 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) | #41629E | 0.037 |
| Deuteranopia (no green cones) | #3E5E99 | 0.037 |
| Tritanopia (no blue cones) | #456672 | 0.090 |
| Achromatopsia (no color) | #606060 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59599B
#59599B
oklch(49.5% 0.104 281.9)
- #6E6300
#6E6300
oklch(49.5% 0.104 101.8)
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 #59599B, closest first.
No curated palette has a color within ΔE 0.04 of #59599B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.032
- Twilight #4E518B ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.044
- Dusk #4E5481 ΔE 0.046
- French Blue #436BAD ΔE 0.055
- Denim #3B638C ΔE 0.055
- Dusty Grape #545775 ΔE 0.062
- Light Navy Blue #2E5A88 ΔE 0.064
Use #59599B 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.