#2157A9#2157A9

#2157A9 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.8% C 0.144 H 258.9°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#2157A9
RGB	rgb(33, 87, 169)
HSL	hsl(216, 67%, 40%)
HSV	hsv(216, 80%, 66%)
CMYK	cmyk(80.5%, 48.5%, 0%, 33.7%)
CIE-LAB	lab(37.85, 12.99, -49.04)
CIE-LCH	lch(37.85, 50.73, 284.83°)
OKLab	oklab(46.83% -0.0276 -0.1409)
OKLCH	oklch(46.83% 0.144 258.9)
XYZ	xyz(11.1942, 10.0030, 38.8692)
Luminance	0.1000 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2157A9 #A97321

analogous

#219BA9 #2157A9 #2F21A9

triadic

#2157A9 #A92157 #57A921

tetradic

#2157A9 #A9219B #A97321 #21A92F

square

#2157A9 #A9219B #A97321 #21A92F

split-complementary

#2157A9 #A92F21 #9BA921

monochromatic

#0D2243 #173D76 #2157A9 #3172D7 #6495E1

Accessibility & contrast

On white

7.00

#2157A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#2157A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2157A9

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2157A9	#FFFFFF	#000000	##FFFFFF
##2157A9	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2860AC

Deuteranopia (green-blind)

#0053A7

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2157a9;
/* rgb */ color: rgb(33, 87, 169);
/* oklch */ color: oklch(46.8% 0.144 258.9);

Tailwind

colors: {
  custom: {
    50: '#7285c3',
    500: '#2157a9',
    950: '#000000',
  },
}

SCSS

$custom: #2157a9;
$custom-light: #7285c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2157a9",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 169
  },
  "hsl": {
    "h": 216.176,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.46825,
    "c": 0.14363,
    "h": 258.9
  },
  "luminance": 0.10004
}

Semantic roles & 50–950 ramp

primary

#2157A9

secondary

#C69D60

accent

#A63EEA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2157A9

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

Preview Lab → · Contrast checker → · Palette generator →