#2157A5#2157A5

#2157A5 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.5% C 0.138 H 258.2°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#2157A5
RGB	rgb(33, 87, 165)
HSL	hsl(215, 67%, 39%)
HSV	hsv(215, 80%, 65%)
CMYK	cmyk(80%, 47.3%, 0%, 35.3%)
CIE-LAB	lab(37.58, 11.41, -47.09)
CIE-LCH	lch(37.58, 48.45, 283.62°)
OKLab	oklab(46.54% -0.0283 -0.1352)
OKLCH	oklch(46.54% 0.138 258.2)
XYZ	xyz(10.8244, 9.8551, 36.9217)
Luminance	0.0986 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2157A5 #A56F21

analogous

#2199A5 #2157A5 #2D21A5

triadic

#2157A5 #A52157 #57A521

tetradic

#2157A5 #A52199 #A56F21 #21A52D

square

#2157A5 #A52199 #A56F21 #21A52D

split-complementary

#2157A5 #A52D21 #99A521

monochromatic

#0D213F #173C72 #2157A5 #2E72D5 #6195DF

Accessibility & contrast

On white

7.07

#2157A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#2157A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2157A5

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2157A5	#FFFFFF	#000000	##FFFFFF
##2157A5	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5FA8

Deuteranopia (green-blind)

#0653A3

Tritanopia (blue-blind)

#006A76

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2157a5;
/* rgb */ color: rgb(33, 87, 165);
/* oklch */ color: oklch(46.5% 0.138 258.2);

Tailwind

colors: {
  custom: {
    50: '#7285c0',
    500: '#2157a5',
    950: '#000000',
  },
}

SCSS

$custom: #2157a5;
$custom-light: #7285c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2157a5",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 165
  },
  "hsl": {
    "h": 215.455,
    "s": 66.667,
    "l": 38.824
  },
  "oklch": {
    "l": 0.46535,
    "c": 0.13814,
    "h": 258.2
  },
  "luminance": 0.09856
}

Semantic roles & 50–950 ramp

primary

#2157A5

secondary

#C49A5E

accent

#A33EEA

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2157A5

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

Preview Lab → · Contrast checker → · Palette generator →