#4C59E4
Closest named color: Warm Blue (#4B57DB). oklch(53.8% 0.208 273.1), rgb(76, 89, 228).
Aa
White text reads best on this color (5.44:1).
About this color
#4C59E4 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.208 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.015 away. White text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.208) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.85:1 |
| White text | 5.44:1 |
Values
| HEX | #4C59E4 |
| RGB | rgb(76, 89, 228) |
| HSL | hsl(235, 74%, 60%) |
| OKLCH | oklch(53.8% 0.208 273.1) |
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 #4C59E4 | 5.44:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #4C59E4 | 3.85:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #4C59E4 text on white | 5.44:1 | AA | Lc 76.6 | Fine for body text |
| #4C59E4 text on black | 3.85:1 | AA large text | Lc -25.1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CDD8FC
oklch(88.5% 0.051 271.9)
-
Step 300
300
#ACBDFE
oklch(80.9% 0.094 272.8)
-
Step 400
400
#8398FD
oklch(70.8% 0.149 273.2)
-
Step 500
500
#667AFB
oklch(63.1% 0.192 273)
-
Step 600
600 (this color)
#4C59E4
oklch(53.8% 0.208 273.1)
-
Step 700
700
#424DCC
oklch(49.1% 0.194 273.1)
-
Step 800
800
#3640A5
oklch(42.7% 0.161 273.2)
-
Step 900
900
#2E3883
oklch(37.8% 0.125 273.1)
-
Step 950
950
#1B214C
oklch(26.9% 0.079 273.9)
#4C59E4 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) | #0071E9 | 0.065 |
| Deuteranopia (no green cones) | #0063E1 | 0.051 |
| Tritanopia (no blue cones) | #007C96 | 0.170 |
| Achromatopsia (no color) | #6A6A6A | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C59E4
#4C59E4
oklch(53.8% 0.208 273.1)
- #846C00
#846C00
oklch(53.9% 0.11 93.5)
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 #4C59E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.015
- Neon Blue #4361EE ΔE 0.024
- Royal Blue #4169E1 ΔE 0.037
- Azul #1D5DEC ΔE 0.042
- Dark Periwinkle #665FD1 ΔE 0.050
- Slate Blue #6A5ACD ΔE 0.056
- Light Indigo #6D5ACF ΔE 0.058
- Iris #6258C4 ΔE 0.058
Use #4C59E4 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.