#586FDF
Closest named color: Royal Blue (#4169E1). oklch(58.2% 0.172 271.4), rgb(88, 111, 223).
Aa
Black text reads best on this color (4.75:1).
About this color
#586FDF is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.172 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.032 away. Black text reads best on it, at 4.75:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #586FDF |
| RGB | rgb(88, 111, 223) |
| HSL | hsl(230, 68%, 61%) |
| OKLCH | oklch(58.2% 0.172 271.4) |
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 #586FDF | 4.41:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #586FDF | 4.75:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #586FDF text on white | 4.41:1 | AA large text | Lc 70.3 | Content text, not long reading |
| #586FDF text on black | 4.75:1 | AA | Lc -31.3 | Non-text elements, placeholder text |
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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AEBEF3
oklch(80.8% 0.077 271.5)
-
Step 400
400
#859BEE
oklch(70.7% 0.124 271.6)
-
Step 500
500
#6880E8
oklch(63.1% 0.158 271.4)
-
Step 600
600 (this color)
#586FDF
oklch(58.2% 0.172 271.4)
-
Step 700
700
#4255BA
oklch(49.2% 0.16 271.3)
-
Step 800
800
#364696
oklch(42.7% 0.132 271.3)
-
Step 900
900
#2F3C78
oklch(37.8% 0.103 271.5)
-
Step 950
950
#1B2346
oklch(26.9% 0.066 271.6)
#586FDF 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) | #317EE3 | 0.047 |
| Deuteranopia (no green cones) | #0E72DD | 0.054 |
| Tritanopia (no blue cones) | #00899C | 0.149 |
| Achromatopsia (no color) | #787878 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #586FDF
#586FDF
oklch(58.2% 0.172 271.4)
- #957700
#957700
oklch(58.1% 0.119 91.1)
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 #586FDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.032
- Dark Periwinkle #665FD1 ΔE 0.044
- Cornflower #6A79F7 ΔE 0.050
- Neon Blue #4361EE ΔE 0.051
- Medium Slate Blue #7B68EE ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.057
- Cerulean Blue #056EEE ΔE 0.060
Use #586FDF 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.