#585ACC
Closest named color: Iris (#6258C4). oklch(52.9% 0.173 278), rgb(88, 90, 204).
Aa
White text reads best on this color (5.60:1).
About this color
#585ACC is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.173 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.019 away. White text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #585ACC |
| RGB | rgb(88, 90, 204) |
| HSL | hsl(239, 53%, 57%) |
| OKLCH | oklch(52.9% 0.173 278) |
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 #585ACC | 5.60:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #585ACC | 3.74:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #585ACC text on white | 5.60:1 | AA | Lc 77.7 | Fine for body text |
| #585ACC text on black | 3.74:1 | AA large text | Lc -24.1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F6
oklch(88.5% 0.043 278.2)
-
Step 300
300
#B4BCF3
oklch(80.8% 0.078 278.1)
-
Step 400
400
#8F98ED
oklch(70.7% 0.124 278.1)
-
Step 500
500
#757CE7
oklch(63.1% 0.159 278)
-
Step 600
600 (this color)
#585ACC
oklch(52.9% 0.173 278)
-
Step 700
700
#4F51B9
oklch(49.2% 0.16 277.9)
-
Step 800
800
#404396
oklch(42.8% 0.133 277.6)
-
Step 900
900
#363977
oklch(37.6% 0.104 278.1)
-
Step 950
950
#1F2246
oklch(27% 0.066 277.4)
#585ACC 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) | #006DD0 | 0.072 |
| Deuteranopia (no green cones) | #0063CA | 0.068 |
| Tritanopia (no blue cones) | #13758A | 0.151 |
| Achromatopsia (no color) | #686868 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #585ACC
#585ACC
oklch(52.9% 0.173 278)
- #7D6B00
#7D6B00
oklch(52.9% 0.109 97.5)
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 #585ACC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.019
- Dark Periwinkle #665FD1 ΔE 0.026
- Slate Blue #6A5ACD ΔE 0.027
- Warm Blue #4B57DB ΔE 0.031
- Light Indigo #6D5ACF ΔE 0.032
- Royal Blue #4169E1 ΔE 0.050
- Bluey Purple #6241C7 ΔE 0.055
- Neon Blue #4361EE ΔE 0.058
Use #585ACC 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.