#4057BE#4057BE

#4057BE is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.7% C 0.163 H 270.0°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#4057BE
RGB	rgb(64, 87, 190)
HSL	hsl(229, 50%, 50%)
HSV	hsv(229, 66%, 75%)
CMYK	cmyk(66.3%, 54.2%, 0%, 25.5%)
CIE-LAB	lab(40.61, 25.07, -56.87)
CIE-LCH	lch(40.61, 62.15, 293.79°)
OKLab	oklab(49.75% 0 -0.1635)
OKLCH	oklch(49.75% 0.163 270)
XYZ	xyz(14.8137, 11.6227, 50.1679)
Luminance	0.1162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4057BE #BEA740

analogous

#4096BE #4057BE #6840BE

triadic

#4057BE #BE4057 #57BE40

tetradic

#4057BE #BE4096 #BEA740 #40BE68

square

#4057BE #BE4096 #BEA740 #40BE68

split-complementary

#4057BE #BE6840 #96BE40

monochromatic

#212D62 #314290 #4057BE #6D7FCE #9BA7DD

Accessibility & contrast

On white

6.32

#4057BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#4057BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4057BE

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4057BE	#FFFFFF	#000000	##FFFFFF
##4057BE	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0966C2

Deuteranopia (green-blind)

#005ABC

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4057be;
/* rgb */ color: rgb(64, 87, 190);
/* oklch */ color: oklch(49.7% 0.163 270.0);

Tailwind

colors: {
  custom: {
    50: '#8386d2',
    500: '#4057be',
    950: '#000000',
  },
}

SCSS

$custom: #4057be;
$custom-light: #8386d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4057be",
  "rgb": {
    "r": 64,
    "g": 87,
    "b": 190
  },
  "hsl": {
    "h": 229.048,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.49749,
    "c": 0.16345,
    "h": 270
  },
  "luminance": 0.11624
}

Semantic roles & 50–950 ramp

primary

#4057BE

secondary

#C9BF90

accent

#C04FD9

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #4057BE

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

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