#2157CA#2157CA

#2157CA is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.4% C 0.188 H 262.7°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#2157CA
RGB	rgb(33, 87, 202)
HSL	hsl(221, 72%, 46%)
HSV	hsv(221, 84%, 79%)
CMYK	cmyk(83.7%, 56.9%, 0%, 20.8%)
CIE-LAB	lab(40.25, 25.88, -64.48)
CIE-LCH	lch(40.25, 69.48, 291.87°)
OKLab	oklab(49.41% -0.024 -0.1864)
OKLCH	oklch(49.41% 0.188 262.7)
XYZ	xyz(14.6922, 11.4022, 57.2921)
Luminance	0.1140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2157CA #CA9421

analogous

#21ABCA #2157CA #3F21CA

triadic

#2157CA #CA2157 #57CA21

tetradic

#2157CA #CA21AB #CA9421 #21CA3F

square

#2157CA #CA21AB #CA9421 #21CA3F

split-complementary

#2157CA #CA3F21 #ABCA21

monochromatic

#102A61 #184095 #2157CA #4778E1 #7C9FEA

Accessibility & contrast

On white

6.40

#2157CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#2157CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2157CA

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2157CA	#FFFFFF	#000000	##FFFFFF
##2157CA	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CE

Deuteranopia (green-blind)

#0057C8

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #2157ca;
/* rgb */ color: rgb(33, 87, 202);
/* oklch */ color: oklch(49.4% 0.188 262.7);

Tailwind

colors: {
  custom: {
    50: '#7b85db',
    500: '#2157ca',
    950: '#000000',
  },
}

SCSS

$custom: #2157ca;
$custom-light: #7b85db;
$custom-dark: #000000;

JSON

{
  "hex": "#2157ca",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 202
  },
  "hsl": {
    "h": 220.828,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.49413,
    "c": 0.1879,
    "h": 262.7
  },
  "luminance": 0.11404
}

Semantic roles & 50–950 ramp

primary

#2157CA

secondary

#D2B475

accent

#B539EF

background

#F8F8FD

surface

#EFEFFB

border

#CACAD4

text

#0B0B15

muted

#7C7C83

Preview Lab

Preview with #2157CA

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

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