#2151A2#2151A2

#2151A2 is a dark, vivid blue. Relative luminance 0.088; OKLCH L 45.0% C 0.141 H 260.3°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#2151A2
RGB	rgb(33, 81, 162)
HSL	hsl(218, 66%, 38%)
HSV	hsv(218, 80%, 64%)
CMYK	cmyk(79.6%, 50%, 0%, 36.5%)
CIE-LAB	lab(35.63, 14.21, -48.44)
CIE-LCH	lch(35.63, 50.48, 286.35°)
OKLab	oklab(44.97% -0.0239 -0.1393)
OKLCH	oklch(44.97% 0.141 260.3)
XYZ	xyz(10.0888, 8.8156, 35.3453)
Luminance	0.0882 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2151A2 #A27221

analogous

#2191A2 #2151A2 #3121A2

triadic

#2151A2 #A22151 #51A221

tetradic

#2151A2 #A22191 #A27221 #21A231

square

#2151A2 #A22191 #A27221 #21A231

split-complementary

#2151A2 #A23121 #91A221

monochromatic

#0C1E3C #17386F #2151A2 #2C6BD4 #5F8EDE

Accessibility & contrast

On white

7.60

#2151A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#2151A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2151A2

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2151A2	#FFFFFF	#000000	##FFFFFF
##2151A2	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215AA5

Deuteranopia (green-blind)

#004EA0

Tritanopia (blue-blind)

#006472

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #2151a2;
/* rgb */ color: rgb(33, 81, 162);
/* oklch */ color: oklch(45.0% 0.141 260.3);

Tailwind

colors: {
  custom: {
    50: '#7181be',
    500: '#2151a2',
    950: '#000000',
  },
}

SCSS

$custom: #2151a2;
$custom-light: #7181be;
$custom-dark: #000000;

JSON

{
  "hex": "#2151a2",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 162
  },
  "hsl": {
    "h": 217.674,
    "s": 66.154,
    "l": 38.235
  },
  "oklch": {
    "l": 0.44968,
    "c": 0.14136,
    "h": 260.3
  },
  "luminance": 0.08817
}

Semantic roles & 50–950 ramp

primary

#2151A2

secondary

#C39D5C

accent

#AA3FE9

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2151A2

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

Preview Lab → · Contrast checker → · Palette generator →