#585FB8
Closest named color: Iris (#6258C4). oklch(52.4% 0.138 277.1), rgb(88, 95, 184).
Aa
White text reads best on this color (5.60:1).
About this color
#585FB8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.138 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.030 away. White text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #585FB8 |
| RGB | rgb(88, 95, 184) |
| HSL | hsl(236, 40%, 53%) |
| OKLCH | oklch(52.4% 0.138 277.1) |
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 #585FB8 | 5.60:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #585FB8 | 3.74:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #585FB8 text on white | 5.60:1 | AA | Lc 77.8 | Fine for body text |
| #585FB8 text on black | 3.74:1 | AA large text | Lc -23.9 | 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 600.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D3D8F0
oklch(88.6% 0.033 276.3)
-
Step 300
300
#B6BEE9
oklch(81% 0.061 276.7)
-
Step 400
400
#919BDE
oklch(70.7% 0.099 277)
-
Step 500
500
#7781D5
oklch(63.2% 0.126 277)
-
Step 600
600 (this color)
#585FB8
oklch(52.4% 0.138 277.1)
-
Step 700
700
#5057A8
oklch(49.2% 0.128 276.9)
-
Step 800
800
#414788
oklch(42.6% 0.107 276.9)
-
Step 900
900
#373C6D
oklch(37.7% 0.083 277.2)
-
Step 950
950
#202440
oklch(27.1% 0.052 276.2)
#585FB8 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) | #366CBB | 0.047 |
| Deuteranopia (no green cones) | #2C64B6 | 0.049 |
| Tritanopia (no blue cones) | #2F7283 | 0.120 |
| Achromatopsia (no color) | #686868 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #585FB8
#585FB8
oklch(52.4% 0.138 277.1)
- #7C6A00
#7C6A00
oklch(52.6% 0.108 97.4)
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 #585FB8, closest first.
No curated palette has a color within ΔE 0.04 of #585FB8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.030
- Dark Periwinkle #665FD1 ΔE 0.044
- Slate Blue #6A5ACD ΔE 0.044
- French Blue #436BAD ΔE 0.045
- Light Indigo #6D5ACF ΔE 0.050
- Mid Blue #276AB3 ΔE 0.056
- Warm Blue #4B57DB ΔE 0.062
- Dusky Blue #475F94 ΔE 0.063
Use #585FB8 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.