#585BBC
Closest named color: Iris (#6258C4). oklch(51.9% 0.149 278.5), rgb(88, 91, 188).
Aa
White text reads best on this color (5.77:1).
About this color
#585BBC is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.149 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.021 away. White text reads best on it, at 5.77:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #585BBC |
| RGB | rgb(88, 91, 188) |
| HSL | hsl(238, 43%, 54%) |
| OKLCH | oklch(51.9% 0.149 278.5) |
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 #585BBC | 5.77:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #585BBC | 3.63:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #585BBC text on white | 5.77:1 | AA | Lc 78.6 | Fine for body text |
| #585BBC text on black | 3.63:1 | AA large text | Lc -23.2 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D3D7F4
oklch(88.5% 0.04 279.3)
-
Step 300
300
#B6BDEF
oklch(81% 0.071 278.5)
-
Step 400
400
#9199E8
oklch(70.8% 0.115 278.6)
-
Step 500
500
#777DE1
oklch(63.1% 0.149 278.6)
-
Step 600
600
#6164CE
oklch(55.5% 0.16 278.6)
-
Step 700
700 (this color)
#585BBC
oklch(51.9% 0.149 278.5)
-
Step 800
800
#424491
oklch(42.7% 0.124 278.6)
-
Step 900
900
#373A73
oklch(37.6% 0.096 278.5)
-
Step 950
950
#202244
oklch(26.9% 0.063 278.8)
#585BBC 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) | #296ABF | 0.057 |
| Deuteranopia (no green cones) | #1B62BA | 0.060 |
| Tritanopia (no blue cones) | #2B7183 | 0.130 |
| Achromatopsia (no color) | #666666 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #585BBC
#585BBC
oklch(51.9% 0.149 278.5)
- #796900
#796900
oklch(52% 0.108 98.7)
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 #585BBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.021
- Slate Blue #6A5ACD ΔE 0.038
- Dark Periwinkle #665FD1 ΔE 0.040
- Light Indigo #6D5ACF ΔE 0.044
- Warm Blue #4B57DB ΔE 0.053
- French Blue #436BAD ΔE 0.056
- Bluey Purple #6241C7 ΔE 0.062
- Mid Blue #276AB3 ΔE 0.063
Use #585BBC 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.