#123181#123181

#123181 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.7% C 0.140 H 264.2°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#123181
RGB	rgb(18, 49, 129)
HSL	hsl(223, 76%, 29%)
HSV	hsv(223, 86%, 51%)
CMYK	cmyk(86%, 62%, 0%, 49.4%)
CIE-LAB	lab(23.37, 21.43, -48.11)
CIE-LCH	lch(23.37, 52.67, 294.01°)
OKLab	oklab(34.73% -0.0142 -0.1392)
OKLCH	oklch(34.73% 0.14 264.2)
XYZ	xyz(5.3088, 3.9096, 21.2394)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123181 #816212

analogous

#126981 #123181 #2B1281

triadic

#123181 #811231 #318112

tetradic

#123181 #811269 #816212 #12812B

square

#123181 #811269 #816212 #12812B

split-complementary

#123181 #812B12 #698112

monochromatic

#040A1B #0B1D4B #123181 #1945B7 #2C5FE2

Accessibility & contrast

On white

11.78

#123181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#123181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123181

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123181	#FFFFFF	#000000	##FFFFFF
##123181	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D84

Deuteranopia (green-blind)

#00337F

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123181;
/* rgb */ color: rgb(18, 49, 129);
/* oklch */ color: oklch(34.7% 0.140 264.2);

Tailwind

colors: {
  custom: {
    50: '#6668a6',
    500: '#123181',
    950: '#000000',
  },
}

SCSS

$custom: #123181;
$custom-light: #6668a6;
$custom-dark: #000000;

JSON

{
  "hex": "#123181",
  "rgb": {
    "r": 18,
    "g": 49,
    "b": 129
  },
  "hsl": {
    "h": 223.243,
    "s": 75.51,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3473,
    "c": 0.13992,
    "h": 264.2
  },
  "luminance": 0.0391
}

Semantic roles & 50–950 ramp

primary

#123181

secondary

#B79338

accent

#BD36F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #123181

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

Preview Lab → · Contrast checker → · Palette generator →