#123781#123781

#123781 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.0% C 0.132 H 262.1°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#123781
RGB	rgb(18, 55, 129)
HSL	hsl(220, 76%, 29%)
HSV	hsv(220, 86%, 51%)
CMYK	cmyk(86%, 57.4%, 0%, 49.4%)
CIE-LAB	lab(25.09, 17.17, -45.30)
CIE-LCH	lch(25.09, 48.45, 290.75°)
OKLab	oklab(36.03% -0.0181 -0.1308)
OKLCH	oklch(36.03% 0.132 262.1)
XYZ	xyz(5.5767, 4.4453, 21.3287)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123781 #815C12

analogous

#126F81 #123781 #251281

triadic

#123781 #811237 #378112

tetradic

#123781 #81126F #815C12 #128125

square

#123781 #81126F #815C12 #128125

split-complementary

#123781 #812512 #6F8112

monochromatic

#040B1B #0B204B #123781 #194EB7 #2C68E2

Accessibility & contrast

On white

11.12

#123781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#123781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123781

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123781	#FFFFFF	#000000	##FFFFFF
##123781	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004184

Deuteranopia (green-blind)

#003780

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #123781;
/* rgb */ color: rgb(18, 55, 129);
/* oklch */ color: oklch(36.0% 0.132 262.1);

Tailwind

colors: {
  custom: {
    50: '#666da6',
    500: '#123781',
    950: '#000000',
  },
}

SCSS

$custom: #123781;
$custom-light: #666da6;
$custom-dark: #000000;

JSON

{
  "hex": "#123781",
  "rgb": {
    "r": 18,
    "g": 55,
    "b": 129
  },
  "hsl": {
    "h": 220,
    "s": 75.51,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36025,
    "c": 0.13208,
    "h": 262.1
  },
  "luminance": 0.04446
}

Semantic roles & 50–950 ramp

primary

#123781

secondary

#B78C38

accent

#B336F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123781

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

Preview Lab → · Contrast checker → · Palette generator →