#2351AB#2351AB

#2351AB is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.7% C 0.153 H 262.0°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#2351AB
RGB	rgb(35, 81, 171)
HSL	hsl(220, 66%, 40%)
HSV	hsv(220, 80%, 67%)
CMYK	cmyk(79.5%, 52.6%, 0%, 32.9%)
CIE-LAB	lab(36.33, 17.98, -52.67)
CIE-LCH	lch(36.33, 55.65, 288.85°)
OKLab	oklab(45.73% -0.0214 -0.1517)
OKLCH	oklch(45.73% 0.153 262)
XYZ	xyz(10.9836, 9.1812, 39.7134)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2351AB #AB7D23

analogous

#2395AB #2351AB #3923AB

triadic

#2351AB #AB2351 #51AB23

tetradic

#2351AB #AB2395 #AB7D23 #23AB39

square

#2351AB #AB2395 #AB7D23 #23AB39

split-complementary

#2351AB #AB3923 #95AB23

monochromatic

#0E2145 #193978 #2351AB #356CD6 #6891E0

Accessibility & contrast

On white

7.40

#2351AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#2351AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2351AB

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2351AB	#FFFFFF	#000000	##FFFFFF
##2351AB	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#115CAE

Deuteranopia (green-blind)

#0050A9

Tritanopia (blue-blind)

#006776

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2351ab;
/* rgb */ color: rgb(35, 81, 171);
/* oklch */ color: oklch(45.7% 0.153 262.0);

Tailwind

colors: {
  custom: {
    50: '#7481c5',
    500: '#2351ab',
    950: '#000000',
  },
}

SCSS

$custom: #2351ab;
$custom-light: #7481c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2351ab",
  "rgb": {
    "r": 35,
    "g": 81,
    "b": 171
  },
  "hsl": {
    "h": 219.706,
    "s": 66.019,
    "l": 40.392
  },
  "oklch": {
    "l": 0.45727,
    "c": 0.15324,
    "h": 262
  },
  "luminance": 0.09182
}

Semantic roles & 50–950 ramp

primary

#2351AB

secondary

#C6A564

accent

#AF3FE9

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2351AB

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

Preview Lab → · Contrast checker → · Palette generator →