#4570BF#4570BF

#4570BF is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.3% C 0.132 H 261.5°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#4570BF
RGB	rgb(69, 112, 191)
HSL	hsl(219, 49%, 51%)
HSV	hsv(219, 64%, 75%)
CMYK	cmyk(63.9%, 41.4%, 0%, 25.1%)
CIE-LAB	lab(47.77, 10.39, -45.94)
CIE-LCH	lch(47.77, 47.10, 282.74°)
OKLab	oklab(55.3% -0.0195 -0.1309)
OKLCH	oklch(55.3% 0.132 261.5)
XYZ	xyz(17.6491, 16.6135, 51.5567)
Luminance	0.1661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4570BF #BF9445

analogous

#45ADBF #4570BF #5745BF

triadic

#4570BF #BF4570 #70BF45

tetradic

#4570BF #BF45AD #BF9445 #45BF57

square

#4570BF #BF45AD #BF9445 #45BF57

split-complementary

#4570BF #BF5745 #ADBF45

monochromatic

#233B66 #335594 #4570BF #7393CF #A0B6DE

Accessibility & contrast

On white

4.86

#4570BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#4570BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4570BF

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4570BF	#FFFFFF	#000000	##FFFFFF
##4570BF	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C77C2

Deuteranopia (green-blind)

#3A6CBD

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4570bf;
/* rgb */ color: rgb(69, 112, 191);
/* oklch */ color: oklch(55.3% 0.132 261.5);

Tailwind

colors: {
  custom: {
    50: '#8498d3',
    500: '#4570bf',
    950: '#000000',
  },
}

SCSS

$custom: #4570bf;
$custom-light: #8498d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4570bf",
  "rgb": {
    "r": 69,
    "g": 112,
    "b": 191
  },
  "hsl": {
    "h": 218.852,
    "s": 48.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.55301,
    "c": 0.1323,
    "h": 261.5
  },
  "luminance": 0.16615
}

Semantic roles & 50–950 ramp

primary

#4570BF

secondary

#CBB895

accent

#A84FD8

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #4570BF

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

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