#2157C2#2157C2

#2157C2 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.8% C 0.177 H 262.0°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#2157C2
RGB	rgb(33, 87, 194)
HSL	hsl(220, 71%, 45%)
HSV	hsv(220, 83%, 76%)
CMYK	cmyk(83%, 55.2%, 0%, 23.9%)
CIE-LAB	lab(39.64, 22.79, -60.84)
CIE-LCH	lch(39.64, 64.97, 290.54°)
OKLab	oklab(48.76% -0.0246 -0.1757)
OKLCH	oklch(48.76% 0.177 262)
XYZ	xyz(13.7695, 11.0331, 52.4323)
Luminance	0.1104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2157C2 #C28C21

analogous

#21A8C2 #2157C2 #3C21C2

triadic

#2157C2 #C22157 #57C221

tetradic

#2157C2 #C221A8 #C28C21 #21C23C

square

#2157C2 #C221A8 #C28C21 #21C23C

split-complementary

#2157C2 #C23C21 #A8C221

monochromatic

#0F2859 #18408E #2157C2 #4176DF #769CE8

Accessibility & contrast

On white

6.55

#2157C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#2157C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2157C2

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2157C2	#FFFFFF	#000000	##FFFFFF
##2157C2	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C6

Deuteranopia (green-blind)

#0056C0

Tritanopia (blue-blind)

#007284

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2157c2;
/* rgb */ color: rgb(33, 87, 194);
/* oklch */ color: oklch(48.8% 0.177 262.0);

Tailwind

colors: {
  custom: {
    50: '#7985d5',
    500: '#2157c2',
    950: '#000000',
  },
}

SCSS

$custom: #2157c2;
$custom-light: #7985d5;
$custom-dark: #000000;

JSON

{
  "hex": "#2157c2",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 194
  },
  "hsl": {
    "h": 219.876,
    "s": 70.925,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48757,
    "c": 0.17738,
    "h": 262
  },
  "luminance": 0.11035
}

Semantic roles & 50–950 ramp

primary

#2157C2

secondary

#CFAF70

accent

#B13AEE

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #2157C2

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

Preview Lab → · Contrast checker → · Palette generator →