#585FE9
Closest named color: Neon Blue (#4361EE). oklch(56% 0.205 275.4), rgb(88, 95, 233).
Aa
White text reads best on this color (4.96:1).
About this color
#585FE9 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.205 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.025 away. White text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.205) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.22:1 |
| White text | 4.96:1 |
Values
| HEX | #585FE9 |
| RGB | rgb(88, 95, 233) |
| HSL | hsl(237, 77%, 63%) |
| OKLCH | oklch(56% 0.205 275.4) |
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 #585FE9 | 4.96:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #585FE9 | 4.22:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #585FE9 text on white | 4.96:1 | AA | Lc 73.9 | Content text, not long reading |
| #585FE9 text on black | 4.22:1 | AA large text | Lc -27.8 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CFD7FC
oklch(88.5% 0.052 275.7)
-
Step 300
300
#AFBCFC
oklch(80.8% 0.092 275.3)
-
Step 400
400
#8797FB
oklch(70.7% 0.147 275.1)
-
Step 500
500
#6C79F9
oklch(63.1% 0.189 275.2)
-
Step 600
600 (this color)
#585FE9
oklch(56% 0.205 275.4)
-
Step 700
700
#484CC9
oklch(49.1% 0.19 275.5)
-
Step 800
800
#3B3FA3
oklch(42.7% 0.158 275.7)
-
Step 900
900
#313781
oklch(37.6% 0.123 275.3)
-
Step 950
950
#1D214C
oklch(27.1% 0.078 275.8)
#585FE9 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) | #0076EE | 0.071 |
| Deuteranopia (no green cones) | #006AE6 | 0.062 |
| Tritanopia (no blue cones) | #00819B | 0.172 |
| Achromatopsia (no color) | #707070 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #585FE9
#585FE9
oklch(56% 0.205 275.4)
- #897300
#897300
oklch(56% 0.115 95.7)
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 #585FE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.025
- Warm Blue #4B57DB ΔE 0.034
- Royal Blue #4169E1 ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.041
- Light Indigo #6D5ACF ΔE 0.050
- Slate Blue #6A5ACD ΔE 0.050
- Azul #1D5DEC ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.058
Use #585FE9 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.