#596ED0
Closest named color: Dark Periwinkle (#665FD1). oklch(57.1% 0.152 271.7), rgb(89, 110, 208).
Aa
White text reads best on this color (4.59:1).
About this color
#596ED0 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.152 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.039 away. White text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.56:1 |
| White text | 4.59:1 |
Values
| HEX | #596ED0 |
| RGB | rgb(89, 110, 208) |
| HSL | hsl(229, 56%, 58%) |
| OKLCH | oklch(57.1% 0.152 271.7) |
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 #596ED0 | 4.59:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #596ED0 | 4.56:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #596ED0 text on white | 4.59:1 | AA | Lc 71.7 | Content text, not long reading |
| #596ED0 text on black | 4.56:1 | AA | Lc -30.0 | 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
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B1BFEE
oklch(81% 0.068 271.9)
-
Step 400
400
#889CE5
oklch(70.6% 0.11 271.7)
-
Step 500
500
#6C82DD
oklch(63.1% 0.139 271.7)
-
Step 600
600 (this color)
#596ED0
oklch(57.1% 0.152 271.7)
-
Step 700
700
#4657B0
oklch(49.1% 0.142 272)
-
Step 800
800
#39488E
oklch(42.7% 0.117 271.6)
-
Step 900
900
#313D72
oklch(37.8% 0.092 271.8)
-
Step 950
950
#1D2442
oklch(27% 0.057 272.2)
#596ED0 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) | #3F7BD4 | 0.039 |
| Deuteranopia (no green cones) | #2E70CE | 0.042 |
| Tritanopia (no blue cones) | #028495 | 0.135 |
| Achromatopsia (no color) | #757575 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596ED0
#596ED0
oklch(57.1% 0.152 271.7)
- #917400
#917400
oklch(57.1% 0.117 91.3)
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 #596ED0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.039
- Royal Blue #4169E1 ΔE 0.041
- Slate Blue #6A5ACD ΔE 0.051
- Windows Blue #3778BF ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.053
- Iris #6258C4 ΔE 0.055
- French Blue #436BAD ΔE 0.062
- Neon Blue #4361EE ΔE 0.065
Use #596ED0 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.