#586583
Closest named color: Slate (#516572). oklch(50.8% 0.051 266.4), rgb(88, 101, 131).
Aa
White text reads best on this color (5.82:1).
About this color
#586583 is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.051 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.030 away. White text reads best on it, at 5.82:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #586583 |
| RGB | rgb(88, 101, 131) |
| HSL | hsl(222, 20%, 43%) |
| OKLCH | oklch(50.8% 0.051 266.4) |
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 #586583 | 5.82:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #586583 | 3.60:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #586583 text on white | 5.82:1 | AA | Lc 79.1 | Fine for body text |
| #586583 text on black | 3.60:1 | AA large text | Lc -22.7 | 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
#E8EAEF
oklch(93.7% 0.007 268.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#B9C1D1
oklch(81% 0.024 264.4)
-
Step 400
400
#95A1BA
oklch(70.8% 0.039 265)
-
Step 500
500
#7B89A9
oklch(63% 0.051 266.4)
-
Step 600
600
#657394
oklch(55.7% 0.054 266.8)
-
Step 700
700 (this color)
#586583
oklch(50.8% 0.051 266.4)
-
Step 800
800
#444F66
oklch(42.7% 0.041 264.8)
-
Step 900
900
#3A4153
oklch(37.6% 0.032 268.2)
-
Step 950
950
#222631
oklch(27% 0.021 269.3)
#586583 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) | #5B6784 | 0.008 |
| Deuteranopia (no green cones) | #576382 | 0.006 |
| Tritanopia (no blue cones) | #4C6B6F | 0.045 |
| Achromatopsia (no color) | #656565 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #586583
#586583
oklch(50.8% 0.051 266.4)
- #726444
#726444
oklch(50.8% 0.05 86.9)
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 #586583, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.030
- Denim #3B638C ΔE 0.040
- Metallic Blue #4F738E ΔE 0.040
- Dusty Grape #545775 ΔE 0.043
- Dusky Blue #475F94 ΔE 0.043
- YInMn Blue #415A77 ΔE 0.050
- Dim Gray #696969 ΔE 0.052
- Dull Blue #49759C ΔE 0.053
Use #586583 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.