#4057AE#4057AE

#4057AE is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.141 H 269.4°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#4057AE
RGB	rgb(64, 87, 174)
HSL	hsl(227, 46%, 47%)
HSV	hsv(227, 63%, 68%)
CMYK	cmyk(63.2%, 50%, 0%, 31.8%)
CIE-LAB	lab(39.52, 19.38, -49.24)
CIE-LCH	lch(39.52, 52.92, 291.48°)
OKLab	oklab(48.57% -0.0014 -0.141)
OKLCH	oklch(48.57% 0.141 269.4)
XYZ	xyz(13.1599, 10.9612, 41.4584)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4057AE #AE9740

analogous

#408EAE #4057AE #6040AE

triadic

#4057AE #AE4057 #57AE40

tetradic

#4057AE #AE408E #AE9740 #40AE60

square

#4057AE #AE408E #AE9740 #40AE60

split-complementary

#4057AE #AE6040 #8EAE40

monochromatic

#1F2A55 #304181 #4057AE #6579C6 #92A0D7

Accessibility & contrast

On white

6.58

#4057AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#4057AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4057AE

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4057AE	#FFFFFF	#000000	##FFFFFF
##4057AE	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2862B1

Deuteranopia (green-blind)

#0E58AC

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4057ae;
/* rgb */ color: rgb(64, 87, 174);
/* oklch */ color: oklch(48.6% 0.141 269.4);

Tailwind

colors: {
  custom: {
    50: '#8086c7',
    500: '#4057ae',
    950: '#000000',
  },
}

SCSS

$custom: #4057ae;
$custom-light: #8086c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4057ae",
  "rgb": {
    "r": 64,
    "g": 87,
    "b": 174
  },
  "hsl": {
    "h": 227.455,
    "s": 46.218,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48572,
    "c": 0.14102,
    "h": 269.4
  },
  "luminance": 0.10962
}

Semantic roles & 50–950 ramp

primary

#4057AE

secondary

#C2B688

accent

#BA52D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4057AE

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

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