#2A51AA#2A51AA

#2A51AA is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.9% C 0.150 H 263.7°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#2A51AA
RGB	rgb(42, 81, 170)
HSL	hsl(222, 60%, 42%)
HSV	hsv(222, 75%, 67%)
CMYK	cmyk(75.3%, 52.4%, 0%, 33.3%)
CIE-LAB	lab(36.51, 18.41, -51.77)
CIE-LCH	lch(36.51, 54.94, 289.58°)
OKLab	oklab(45.92% -0.0164 -0.149)
OKLCH	oklch(45.92% 0.15 263.7)
XYZ	xyz(11.1504, 9.2781, 39.2256)
Luminance	0.0928 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A51AA #AA832A

analogous

#2A91AA #2A51AA #432AAA

triadic

#2A51AA #AA2A51 #51AA2A

tetradic

#2A51AA #AA2A91 #AA832A #2AAA43

square

#2A51AA #AA2A91 #AA832A #2AAA43

split-complementary

#2A51AA #AA432A #91AA2A

monochromatic

#122248 #1E3A79 #2A51AA #416DD0 #7292DC

Accessibility & contrast

On white

7.35

#2A51AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#2A51AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A51AA

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A51AA	#FFFFFF	#000000	##FFFFFF
##2A51AA	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	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: #2a51aa;
/* rgb */ color: rgb(42, 81, 170);
/* oklch */ color: oklch(45.9% 0.150 263.7);

Tailwind

colors: {
  custom: {
    50: '#7681c4',
    500: '#2a51aa',
    950: '#000000',
  },
}

SCSS

$custom: #2a51aa;
$custom-light: #7681c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2a51aa",
  "rgb": {
    "r": 42,
    "g": 81,
    "b": 170
  },
  "hsl": {
    "h": 221.719,
    "s": 60.377,
    "l": 41.569
  },
  "oklch": {
    "l": 0.45915,
    "c": 0.14987,
    "h": 263.7
  },
  "luminance": 0.09279
}

Semantic roles & 50–950 ramp

primary

#2A51AA

secondary

#C3A96C

accent

#B344E4

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2A51AA

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

Preview Lab → · Contrast checker → · Palette generator →