#596FE0
Closest named color: Royal Blue (#4169E1). oklch(58.3% 0.173 271.8), rgb(89, 111, 224).
Aa
Black text reads best on this color (4.77:1).
About this color
#596FE0 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.173 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.033 away. Black text reads best on it, at 4.77:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.77:1 |
| White text | 4.39:1 |
Values
| HEX | #596FE0 |
| RGB | rgb(89, 111, 224) |
| HSL | hsl(230, 69%, 61%) |
| OKLCH | oklch(58.3% 0.173 271.8) |
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 #596FE0 | 4.39:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #596FE0 | 4.77:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #596FE0 text on white | 4.39:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #596FE0 text on black | 4.77:1 | AA | Lc -31.5 | 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
#CFD8F7
oklch(88.5% 0.044 272.7)
-
Step 300
300
#AEBEF4
oklch(80.8% 0.079 271.7)
-
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)
#596FE0
oklch(58.3% 0.173 271.8)
-
Step 700
700
#4354BA
oklch(49% 0.161 272)
-
Step 800
800
#374697
oklch(42.8% 0.133 271.7)
-
Step 900
900
#2F3B78
oklch(37.6% 0.104 272.1)
-
Step 950
950
#1B2346
oklch(26.9% 0.066 271.6)
#596FE0 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) | #307EE4 | 0.048 |
| Deuteranopia (no green cones) | #0C73DE | 0.055 |
| Tritanopia (no blue cones) | #00899D | 0.149 |
| Achromatopsia (no color) | #787878 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596FE0
#596FE0
oklch(58.3% 0.173 271.8)
- #957800
#957800
oklch(58.4% 0.119 91.8)
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 #596FE0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.033
- Dark Periwinkle #665FD1 ΔE 0.044
- Cornflower #6A79F7 ΔE 0.048
- Neon Blue #4361EE ΔE 0.051
- Medium Slate Blue #7B68EE ΔE 0.053
- Slate Blue #6A5ACD ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.057
- Clear Blue #247AFD ΔE 0.061
Use #596FE0 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.