#2151AE#2151AE

#2151AE is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.9% C 0.158 H 261.8°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#2151AE
RGB	rgb(33, 81, 174)
HSL	hsl(220, 68%, 41%)
HSV	hsv(220, 81%, 68%)
CMYK	cmyk(81%, 53.4%, 0%, 31.8%)
CIE-LAB	lab(36.49, 18.95, -54.20)
CIE-LCH	lch(36.49, 57.42, 289.27°)
OKLab	oklab(45.9% -0.0224 -0.1563)
OKLCH	oklch(45.9% 0.158 261.8)
XYZ	xyz(11.2069, 9.2628, 41.2334)
Luminance	0.0926 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2151AE #AE7E21

analogous

#2198AE #2151AE #3721AE

triadic

#2151AE #AE2151 #51AE21

tetradic

#2151AE #AE2198 #AE7E21 #21AE37

square

#2151AE #AE2198 #AE7E21 #21AE37

split-complementary

#2151AE #AE3721 #98AE21

monochromatic

#0D2147 #17397B #2151AE #346CD8 #6791E2

Accessibility & contrast

On white

7.36

#2151AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#2151AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2151AE

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2151AE	#FFFFFF	#000000	##FFFFFF
##2151AE	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#075DB1

Deuteranopia (green-blind)

#0050AC

Tritanopia (blue-blind)

#006877

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2151ae;
/* rgb */ color: rgb(33, 81, 174);
/* oklch */ color: oklch(45.9% 0.158 261.8);

Tailwind

colors: {
  custom: {
    50: '#7481c7',
    500: '#2151ae',
    950: '#000000',
  },
}

SCSS

$custom: #2151ae;
$custom-light: #7481c7;
$custom-dark: #000000;

JSON

{
  "hex": "#2151ae",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 174
  },
  "hsl": {
    "h": 219.574,
    "s": 68.116,
    "l": 40.588
  },
  "oklch": {
    "l": 0.45896,
    "c": 0.15788,
    "h": 261.8
  },
  "luminance": 0.09264
}

Semantic roles & 50–950 ramp

primary

#2151AE

secondary

#C8A563

accent

#B03DEB

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2151AE

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

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