#3B59E6
Closest named color: Azul (#1D5DEC). oklch(53.1% 0.215 268.5), rgb(59, 89, 230).
Aa
White text reads best on this color (5.58:1).
About this color
#3B59E6 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.215 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.024 away. White text reads best on it, at 5.58:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.215) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.75:1 |
| White text | 5.58:1 |
Values
| HEX | #3B59E6 |
| RGB | rgb(59, 89, 230) |
| HSL | hsl(229, 77%, 57%) |
| OKLCH | oklch(53.1% 0.215 268.5) |
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 #3B59E6 | 5.58:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #3B59E6 | 3.75:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #3B59E6 text on white | 5.58:1 | AA | Lc 77.3 | Fine for body text |
| #3B59E6 text on black | 3.75:1 | AA large text | Lc -24.5 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CAD9FE
oklch(88.6% 0.054 267.9)
-
Step 300
300
#A7BFFF
oklch(81% 0.095 268.4)
-
Step 400
400
#799AFF
oklch(70.6% 0.153 268.6)
-
Step 500
500
#597DFF
oklch(63.2% 0.197 268.6)
-
Step 600
600 (this color)
#3B59E6
oklch(53.1% 0.215 268.5)
-
Step 700
700
#344FD0
oklch(49.1% 0.201 268.6)
-
Step 800
800
#2B42A8
oklch(42.7% 0.166 268.6)
-
Step 900
900
#263985
oklch(37.7% 0.129 268.8)
-
Step 950
950
#16224E
oklch(26.9% 0.083 268.8)
#3B59E6 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) | #0070EB | 0.055 |
| Deuteranopia (no green cones) | #0060E3 | 0.033 |
| Tritanopia (no blue cones) | #007D97 | 0.169 |
| Achromatopsia (no color) | #686868 | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B59E6
#3B59E6
oklch(53.1% 0.215 268.5)
- #866800
#866800
oklch(53.2% 0.109 88.7)
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 #3B59E6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.024
- Warm Blue #4B57DB ΔE 0.024
- Neon Blue #4361EE ΔE 0.025
- Royal Blue #4169E1 ΔE 0.040
- Bright Blue #0165FC ΔE 0.047
- Cerulean Blue #056EEE ΔE 0.051
- Electric Blue #0652FF ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.067
Use #3B59E6 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.