#586E99
Closest named color: Dull Blue (#49759C). oklch(53.9% 0.073 263.3), rgb(88, 110, 153).
Aa
White text reads best on this color (5.11:1).
About this color
#586E99 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.073 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.024 away. White text reads best on it, at 5.11:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.10:1 |
| White text | 5.11:1 |
Values
| HEX | #586E99 |
| RGB | rgb(88, 110, 153) |
| HSL | hsl(220, 27%, 47%) |
| OKLCH | oklch(53.9% 0.073 263.3) |
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 #586E99 | 5.11:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #586E99 | 4.10:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #586E99 text on white | 5.11:1 | AA | Lc 75.2 | Fine for body text |
| #586E99 text on black | 4.10:1 | AA large text | Lc -26.5 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D6
oklch(80.9% 0.032 263.5)
-
Step 400
400
#90A1C2
oklch(70.7% 0.052 263.6)
-
Step 500
500
#748AB3
oklch(63.2% 0.067 262.6)
-
Step 600
600 (this color)
#586E99
oklch(53.9% 0.073 263.3)
-
Step 700
700
#4C6088
oklch(49% 0.069 263.6)
-
Step 800
800
#3F4F6E
oklch(42.8% 0.056 263.2)
-
Step 900
900
#354259
oklch(37.8% 0.043 261.6)
-
Step 950
950
#1F2634
oklch(26.8% 0.028 263.9)
#586E99 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) | #5F719B | 0.014 |
| Deuteranopia (no green cones) | #586B98 | 0.008 |
| Tritanopia (no blue cones) | #41777D | 0.065 |
| Achromatopsia (no color) | #6E6E6E | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #586E99
#586E99
oklch(53.9% 0.073 263.3)
- #836A3A
#836A3A
oklch(53.8% 0.073 82.4)
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 #586E99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.024
- Metallic Blue #4F738E ΔE 0.028
- Muted Blue #3B719F ΔE 0.032
- Flat Blue #3C73A8 ΔE 0.036
- Stormy Blue #507B9C ΔE 0.037
- Cerulean #457B9D ΔE 0.040
- French Blue #436BAD ΔE 0.042
- Dusky Blue #475F94 ΔE 0.051
Use #586E99 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.