#2161BB#2161BB

#2161BB is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.4% C 0.156 H 258.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#2161BB
RGB	rgb(33, 97, 187)
HSL	hsl(215, 70%, 43%)
HSV	hsv(215, 82%, 73%)
CMYK	cmyk(82.4%, 48.1%, 0%, 26.7%)
CIE-LAB	lab(41.94, 13.50, -53.04)
CIE-LCH	lch(41.94, 54.73, 284.28°)
OKLab	oklab(50.36% -0.0324 -0.1525)
OKLCH	oklch(50.36% 0.156 258)
XYZ	xyz(13.8682, 12.4589, 48.6780)
Luminance	0.1246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2161BB #BB7B21

analogous

#21AEBB #2161BB #2E21BB

triadic

#2161BB #BB2161 #61BB21

tetradic

#2161BB #BB21AE #BB7B21 #21BB2E

square

#2161BB #BB21AE #BB7B21 #21BB2E

split-complementary

#2161BB #BB2E21 #AEBB21

monochromatic

#0F2B53 #184687 #2161BB #3D7FDD #71A1E6

Accessibility & contrast

On white

6.01

#2161BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#2161BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2161BB

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2161BB	#FFFFFF	#000000	##FFFFFF
##2161BB	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D6ABE

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#007785

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #2161bb;
/* rgb */ color: rgb(33, 97, 187);
/* oklch */ color: oklch(50.4% 0.156 258.0);

Tailwind

colors: {
  custom: {
    50: '#768dd0',
    500: '#2161bb',
    950: '#000000',
  },
}

SCSS

$custom: #2161bb;
$custom-light: #768dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#2161bb",
  "rgb": {
    "r": 33,
    "g": 97,
    "b": 187
  },
  "hsl": {
    "h": 215.065,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50356,
    "c": 0.15592,
    "h": 258
  },
  "luminance": 0.12461
}

Semantic roles & 50–950 ramp

primary

#2161BB

secondary

#CCA46B

accent

#A33BED

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C14

muted

#7C7D82

Preview Lab

Preview with #2161BB

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

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