#59618B
Closest named color: Dusky Blue (#475F94). oklch(50.3% 0.068 275.4), rgb(89, 97, 139).
Aa
White text reads best on this color (5.98:1).
About this color
#59618B is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.068 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.030 away. White text reads best on it, at 5.98:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.50:1 |
| White text | 5.98:1 |
Values
| HEX | #59618B |
| RGB | rgb(89, 97, 139) |
| HSL | hsl(230, 22%, 45%) |
| OKLCH | oklch(50.3% 0.068 275.4) |
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 #59618B | 5.98:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #59618B | 3.50:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #59618B text on white | 5.98:1 | AA | Lc 79.9 | Fine for body text |
| #59618B text on black | 3.50:1 | AA large text | Lc -21.9 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D5D8E5
oklch(88.4% 0.018 275.6)
-
Step 300
300
#BABFD6
oklch(80.8% 0.033 275.9)
-
Step 400
400
#979EC2
oklch(70.6% 0.053 276.3)
-
Step 500
500
#7E87B2
oklch(63.2% 0.066 275.2)
-
Step 600
600
#67709E
oklch(55.6% 0.072 275.3)
-
Step 700
700 (this color)
#59618B
oklch(50.3% 0.068 275.4)
-
Step 800
800
#464C6E
oklch(42.6% 0.057 276)
-
Step 900
900
#3B4059
oklch(37.8% 0.043 275.4)
-
Step 950
950
#222534
oklch(26.8% 0.028 275.6)
#59618B 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) | #54658D | 0.012 |
| Deuteranopia (no green cones) | #50618A | 0.013 |
| Tritanopia (no blue cones) | #4B6970 | 0.060 |
| Achromatopsia (no color) | #636363 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59618B
#59618B
oklch(50.3% 0.068 275.4)
- #706435
#706435
oklch(50.3% 0.068 95.4)
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 #59618B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.030
- Denim #3B638C ΔE 0.037
- Dusty Grape #545775 ΔE 0.042
- Dusk #4E5481 ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.047
- Slate #516572 ΔE 0.048
- Twilight #4E518B ΔE 0.051
- YInMn Blue #415A77 ΔE 0.051
Use #59618B 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.