#586B9B
Closest named color: Dull Blue (#49759C). oklch(53.3% 0.079 267.2), rgb(88, 107, 155).
Aa
White text reads best on this color (5.26:1).
About this color
#586B9B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.079 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.032 away. White text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 3.99:1 |
| White text | 5.26:1 |
Values
| HEX | #586B9B |
| RGB | rgb(88, 107, 155) |
| HSL | hsl(223, 28%, 48%) |
| OKLCH | oklch(53.3% 0.079 267.2) |
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 #586B9B | 5.26:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #586B9B | 3.99:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #586B9B text on white | 5.26:1 | AA | Lc 76.1 | Fine for body text |
| #586B9B text on black | 3.99:1 | AA large text | Lc -25.7 | 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 600.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D3D9E7
oklch(88.5% 0.02 267.3)
-
Step 300
300
#B6C0D8
oklch(80.8% 0.036 267.6)
-
Step 400
400
#91A0C5
oklch(70.7% 0.057 267.7)
-
Step 500
500
#7688B6
oklch(63% 0.073 267.8)
-
Step 600
600 (this color)
#586B9B
oklch(53.3% 0.079 267.2)
-
Step 700
700
#4E5F8B
oklch(49.1% 0.074 267.5)
-
Step 800
800
#404E71
oklch(42.7% 0.061 267.1)
-
Step 900
900
#36415B
oklch(37.7% 0.047 266.5)
-
Step 950
950
#202635
oklch(27% 0.029 267.5)
#586B9B 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) | #5A6F9D | 0.012 |
| Deuteranopia (no green cones) | #54699A | 0.008 |
| Tritanopia (no blue cones) | #41757C | 0.071 |
| Achromatopsia (no color) | #6C6C6C | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #586B9B
#586B9B
oklch(53.3% 0.079 267.2)
- #806A32
#806A32
oklch(53.3% 0.08 88.1)
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 #586B9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.032
- Muted Blue #3B719F ΔE 0.034
- French Blue #436BAD ΔE 0.037
- Metallic Blue #4F738E ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.044
- Stormy Blue #507B9C ΔE 0.046
- Cerulean #457B9D ΔE 0.048
Use #586B9B 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.