#2451BB#2451BB

#2451BB is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.0% C 0.175 H 263.6°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#2451BB
RGB	rgb(36, 81, 187)
HSL	hsl(222, 68%, 44%)
HSV	hsv(222, 81%, 73%)
CMYK	cmyk(80.7%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(37.57, 24.31, -60.11)
CIE-LCH	lch(37.57, 64.84, 292.02°)
OKLab	oklab(47.05% -0.0193 -0.1736)
OKLCH	oklch(47.05% 0.175 263.6)
XYZ	xyz(12.6364, 9.8463, 48.2386)
Luminance	0.0985 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2451BB #BB8E24

analogous

#249CBB #2451BB #4224BB

triadic

#2451BB #BB2451 #51BB24

tetradic

#2451BB #BB249C #BB8E24 #24BB42

square

#2451BB #BB249C #BB8E24 #24BB42

split-complementary

#2451BB #BB4224 #9CBB24

monochromatic

#102554 #1A3B88 #2451BB #426FDB #7596E4

Accessibility & contrast

On white

7.07

#2451BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#2451BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2451BB

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2451BB	#FFFFFF	#000000	##FFFFFF
##2451BB	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0052B9

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2451bb;
/* rgb */ color: rgb(36, 81, 187);
/* oklch */ color: oklch(47.0% 0.175 263.6);

Tailwind

colors: {
  custom: {
    50: '#7881d0',
    500: '#2451bb',
    950: '#000000',
  },
}

SCSS

$custom: #2451bb;
$custom-light: #7881d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2451bb",
  "rgb": {
    "r": 36,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 222.119,
    "s": 67.713,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4705,
    "c": 0.17468,
    "h": 263.6
  },
  "luminance": 0.09848
}

Semantic roles & 50–950 ramp

primary

#2451BB

secondary

#CCB06F

accent

#B73DEB

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2451BB

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

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