#596BE2
Closest named color: Royal Blue (#4169E1). oklch(57.7% 0.18 273), rgb(89, 107, 226).
Aa
Black text reads best on this color (4.62:1).
About this color
#596BE2 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.180 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.028 away. Black text reads best on it, at 4.62:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.62:1 |
| White text | 4.53:1 |
Values
| HEX | #596BE2 |
| RGB | rgb(89, 107, 226) |
| HSL | hsl(232, 70%, 62%) |
| OKLCH | oklch(57.7% 0.18 273) |
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 #596BE2 | 4.53:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #596BE2 | 4.62:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #596BE2 text on white | 4.53:1 | AA | Lc 71.2 | Content text, not long reading |
| #596BE2 text on black | 4.62:1 | AA | Lc -30.5 | 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
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#AFBEF6
oklch(81% 0.081 272.8)
-
Step 400
400
#869AF1
oklch(70.7% 0.129 272.9)
-
Step 500
500
#6A7EEC
oklch(63.1% 0.165 273)
-
Step 600
600 (this color)
#596BE2
oklch(57.7% 0.18 273)
-
Step 700
700
#4452BE
oklch(49% 0.169 272.9)
-
Step 800
800
#38449A
oklch(42.7% 0.14 273)
-
Step 900
900
#303A7A
oklch(37.6% 0.109 273.4)
-
Step 950
950
#1C2347
oklch(27.1% 0.067 272.9)
#596BE2 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) | #207CE6 | 0.057 |
| Deuteranopia (no green cones) | #0070E0 | 0.059 |
| Tritanopia (no blue cones) | #00879C | 0.155 |
| Achromatopsia (no color) | #767676 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596BE2
#596BE2
oklch(57.7% 0.18 273)
- #927700
#927700
oklch(57.8% 0.118 93)
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 #596BE2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.028
- Dark Periwinkle #665FD1 ΔE 0.039
- Neon Blue #4361EE ΔE 0.042
- Medium Slate Blue #7B68EE ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.052
- Cornflower #6A79F7 ΔE 0.052
- Warm Blue #4B57DB ΔE 0.054
Use #596BE2 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.