#4057A2#4057A2

#4057A2 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.124 H 268.6°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#4057A2
RGB	rgb(64, 87, 162)
HSL	hsl(226, 43%, 44%)
HSV	hsv(226, 60%, 64%)
CMYK	cmyk(60.5%, 46.3%, 0%, 36.5%)
CIE-LAB	lab(38.75, 15.13, -43.35)
CIE-LCH	lch(38.75, 45.91, 289.25°)
OKLab	oklab(47.74% -0.0031 -0.1237)
OKLCH	oklch(47.74% 0.124 268.6)
XYZ	xyz(12.0419, 10.5140, 35.5702)
Luminance	0.1051 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4057A2 #A28B40

analogous

#4088A2 #4057A2 #5A40A2

triadic

#4057A2 #A24057 #57A240

tetradic

#4057A2 #A24088 #A28B40 #40A25A

square

#4057A2 #A24088 #A28B40 #40A25A

split-complementary

#4057A2 #A25A40 #88A240

monochromatic

#1D284A #2F3F76 #4057A2 #5F76C0 #8B9CD1

Accessibility & contrast

On white

6.77

#4057A2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#4057A2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4057A2

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4057A2	#FFFFFF	#000000	##FFFFFF
##4057A2	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3460A5

Deuteranopia (green-blind)

#2557A0

Tritanopia (blue-blind)

#006874

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4057a2;
/* rgb */ color: rgb(64, 87, 162);
/* oklch */ color: oklch(47.7% 0.124 268.6);

Tailwind

colors: {
  custom: {
    50: '#7e86be',
    500: '#4057a2',
    950: '#000000',
  },
}

SCSS

$custom: #4057a2;
$custom-light: #7e86be;
$custom-dark: #000000;

JSON

{
  "hex": "#4057a2",
  "rgb": {
    "r": 64,
    "g": 87,
    "b": 162
  },
  "hsl": {
    "h": 225.918,
    "s": 43.363,
    "l": 44.314
  },
  "oklch": {
    "l": 0.47743,
    "c": 0.12371,
    "h": 268.6
  },
  "luminance": 0.10515
}

Semantic roles & 50–950 ramp

primary

#4057A2

secondary

#BCAE82

accent

#B555D3

background

#F8F8FB

surface

#EFEFF7

border

#CACAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #4057A2

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →