#2157A6#2157A6

#2157A6 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.6% C 0.140 H 258.4°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#2157A6
RGB	rgb(33, 87, 166)
HSL	hsl(216, 67%, 39%)
HSV	hsv(216, 80%, 65%)
CMYK	cmyk(80.1%, 47.6%, 0%, 34.9%)
CIE-LAB	lab(37.65, 11.80, -47.58)
CIE-LCH	lch(37.65, 49.02, 283.93°)
OKLab	oklab(46.61% -0.0281 -0.1366)
OKLCH	oklch(46.61% 0.14 258.4)
XYZ	xyz(10.9158, 9.8916, 37.4030)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2157A6 #A67021

analogous

#219AA6 #2157A6 #2E21A6

triadic

#2157A6 #A62157 #57A621

tetradic

#2157A6 #A6219A #A67021 #21A62E

square

#2157A6 #A6219A #A67021 #21A62E

split-complementary

#2157A6 #A62E21 #9AA621

monochromatic

#0D2140 #173C73 #2157A6 #2F72D6 #6295E0

Accessibility & contrast

On white

7.05

#2157A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#2157A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2157A6

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2157A6	#FFFFFF	#000000	##FFFFFF
##2157A6	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5FA9

Deuteranopia (green-blind)

#0253A4

Tritanopia (blue-blind)

#006A76

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2157a6;
/* rgb */ color: rgb(33, 87, 166);
/* oklch */ color: oklch(46.6% 0.140 258.4);

Tailwind

colors: {
  custom: {
    50: '#7285c1',
    500: '#2157a6',
    950: '#000000',
  },
}

SCSS

$custom: #2157a6;
$custom-light: #7285c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2157a6",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 166
  },
  "hsl": {
    "h": 215.639,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.46607,
    "c": 0.13951,
    "h": 258.4
  },
  "luminance": 0.09893
}

Semantic roles & 50–950 ramp

primary

#2157A6

secondary

#C59B5E

accent

#A43EEA

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2157A6

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

Preview Lab → · Contrast checker → · Palette generator →