#123C81#123C81

#123C81 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.2% C 0.126 H 260.1°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#123C81
RGB	rgb(18, 60, 129)
HSL	hsl(217, 76%, 29%)
HSV	hsv(217, 86%, 51%)
CMYK	cmyk(86%, 53.5%, 0%, 49.4%)
CIE-LAB	lab(26.58, 13.63, -42.90)
CIE-LCH	lch(26.58, 45.01, 287.62°)
OKLab	oklab(37.15% -0.0216 -0.1237)
OKLCH	oklch(37.15% 0.126 260.1)
XYZ	xyz(5.8263, 4.9446, 21.4119)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C81 #815712

analogous

#127481 #123C81 #201281

triadic

#123C81 #81123C #3C8112

tetradic

#123C81 #811274 #815712 #128120

square

#123C81 #811274 #815712 #128120

split-complementary

#123C81 #812012 #748112

monochromatic

#040C1B #0B234B #123C81 #1955B7 #2C71E2

Accessibility & contrast

On white

10.56

#123C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#123C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C81

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C81	#FFFFFF	#000000	##FFFFFF
##123C81	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4483

Deuteranopia (green-blind)

#003A80

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #123c81;
/* rgb */ color: rgb(18, 60, 129);
/* oklch */ color: oklch(37.2% 0.126 260.1);

Tailwind

colors: {
  custom: {
    50: '#6571a6',
    500: '#123c81',
    950: '#000000',
  },
}

SCSS

$custom: #123c81;
$custom-light: #6571a6;
$custom-dark: #000000;

JSON

{
  "hex": "#123c81",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 129
  },
  "hsl": {
    "h": 217.297,
    "s": 75.51,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37153,
    "c": 0.12554,
    "h": 260.1
  },
  "luminance": 0.04945
}

Semantic roles & 50–950 ramp

primary

#123C81

secondary

#B78738

accent

#AB36F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123C81

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

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