#585DCB
Closest named color: Iris (#6258C4). oklch(53.4% 0.167 277.1), rgb(88, 93, 203).
Aa
White text reads best on this color (5.46:1).
About this color
#585DCB is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.167 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.020 away. White text reads best on it, at 5.46:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.84:1 |
| White text | 5.46:1 |
Values
| HEX | #585DCB |
| RGB | rgb(88, 93, 203) |
| HSL | hsl(237, 53%, 57%) |
| OKLCH | oklch(53.4% 0.167 277.1) |
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 #585DCB | 5.46:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #585DCB | 3.84:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #585DCB text on white | 5.46:1 | AA | Lc 77.0 | Fine for body text |
| #585DCB text on black | 3.84:1 | AA large text | Lc -24.8 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300
#B4BDF2
oklch(81% 0.076 277.1)
-
Step 400
400
#8E99EB
oklch(70.8% 0.12 277)
-
Step 500
500
#747DE5
oklch(63.1% 0.155 277.3)
-
Step 600
600 (this color)
#585DCB
oklch(53.4% 0.167 277.1)
-
Step 700
700
#4E52B6
oklch(49.1% 0.155 277.3)
-
Step 800
800
#404494
oklch(42.8% 0.129 277.3)
-
Step 900
900
#353A76
oklch(37.7% 0.101 276.8)
-
Step 950
950
#1F2245
oklch(26.9% 0.064 277.4)
#585DCB 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) | #156ECF | 0.065 |
| Deuteranopia (no green cones) | #0065C9 | 0.066 |
| Tritanopia (no blue cones) | #15768B | 0.146 |
| Achromatopsia (no color) | #696969 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #585DCB
#585DCB
oklch(53.4% 0.167 277.1)
- #7F6C00
#7F6C00
oklch(53.3% 0.11 96.9)
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 #585DCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.020
- Dark Periwinkle #665FD1 ΔE 0.023
- Slate Blue #6A5ACD ΔE 0.027
- Light Indigo #6D5ACF ΔE 0.032
- Warm Blue #4B57DB ΔE 0.035
- Royal Blue #4169E1 ΔE 0.047
- Neon Blue #4361EE ΔE 0.058
- Bluey Purple #6241C7 ΔE 0.062
Use #585DCB 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.