#2B51AA#2B51AA

#2B51AA is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.0% C 0.150 H 264.0°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#2B51AA
RGB	rgb(43, 81, 170)
HSL	hsl(222, 60%, 42%)
HSV	hsv(222, 75%, 67%)
CMYK	cmyk(74.7%, 52.4%, 0%, 33.3%)
CIE-LAB	lab(36.55, 18.54, -51.70)
CIE-LCH	lch(36.55, 54.92, 289.73°)
OKLab	oklab(45.96% -0.0156 -0.1487)
OKLCH	oklch(45.96% 0.15 264)
XYZ	xyz(11.1918, 9.2995, 39.2276)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B51AA #AA842B

analogous

#2B91AA #2B51AA #452BAA

triadic

#2B51AA #AA2B51 #51AA2B

tetradic

#2B51AA #AA2B91 #AA842B #2BAA45

square

#2B51AA #AA2B91 #AA842B #2BAA45

split-complementary

#2B51AA #AA452B #91AA2B

monochromatic

#122248 #1F3A79 #2B51AA #436DCF #7493DC

Accessibility & contrast

On white

7.34

#2B51AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#2B51AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B51AA

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B51AA	#FFFFFF	#000000	##FFFFFF
##2B51AA	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#165CAD

Deuteranopia (green-blind)

#0050A8

Tritanopia (blue-blind)

#006675

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2b51aa;
/* rgb */ color: rgb(43, 81, 170);
/* oklch */ color: oklch(46.0% 0.150 264.0);

Tailwind

colors: {
  custom: {
    50: '#7681c4',
    500: '#2b51aa',
    950: '#000000',
  },
}

SCSS

$custom: #2b51aa;
$custom-light: #7681c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b51aa",
  "rgb": {
    "r": 43,
    "g": 81,
    "b": 170
  },
  "hsl": {
    "h": 222.047,
    "s": 59.624,
    "l": 41.765
  },
  "oklch": {
    "l": 0.45957,
    "c": 0.14957,
    "h": 264
  },
  "luminance": 0.09301
}

Semantic roles & 50–950 ramp

primary

#2B51AA

secondary

#C3AA6E

accent

#B445E3

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2B51AA

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

Preview Lab → · Contrast checker → · Palette generator →