#123981#123981

#123981 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.5% C 0.129 H 261.3°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#123981
RGB	rgb(18, 57, 129)
HSL	hsl(219, 76%, 29%)
HSV	hsv(219, 86%, 51%)
CMYK	cmyk(86%, 55.8%, 0%, 49.4%)
CIE-LAB	lab(25.68, 15.75, -44.35)
CIE-LCH	lch(25.68, 47.06, 289.55°)
OKLab	oklab(36.47% -0.0195 -0.128)
OKLCH	oklch(36.47% 0.129 261.3)
XYZ	xyz(5.6736, 4.6391, 21.3610)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123981 #815A12

analogous

#127181 #123981 #231281

triadic

#123981 #811239 #398112

tetradic

#123981 #811271 #815A12 #128123

square

#123981 #811271 #815A12 #128123

split-complementary

#123981 #812312 #718112

monochromatic

#040C1B #0B214B #123981 #1951B7 #2C6CE2

Accessibility & contrast

On white

10.89

#123981 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#123981 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123981

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123981	#FFFFFF	#000000	##FFFFFF
##123981	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004284

Deuteranopia (green-blind)

#003880

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #123981;
/* rgb */ color: rgb(18, 57, 129);
/* oklch */ color: oklch(36.5% 0.129 261.3);

Tailwind

colors: {
  custom: {
    50: '#666ea6',
    500: '#123981',
    950: '#000000',
  },
}

SCSS

$custom: #123981;
$custom-light: #666ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#123981",
  "rgb": {
    "r": 18,
    "g": 57,
    "b": 129
  },
  "hsl": {
    "h": 218.919,
    "s": 75.51,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36471,
    "c": 0.12946,
    "h": 261.3
  },
  "luminance": 0.0464
}

Semantic roles & 50–950 ramp

primary

#123981

secondary

#B78A38

accent

#B036F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123981

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

Preview Lab → · Contrast checker → · Palette generator →