#123E81#123E81

#123E81 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.6% C 0.123 H 259.1°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#123E81
RGB	rgb(18, 62, 129)
HSL	hsl(216, 76%, 29%)
HSV	hsv(216, 86%, 51%)
CMYK	cmyk(86%, 51.9%, 0%, 49.4%)
CIE-LAB	lab(27.18, 12.22, -41.92)
CIE-LCH	lch(27.18, 43.66, 286.25°)
OKLab	oklab(37.61% -0.0232 -0.1207)
OKLCH	oklch(37.61% 0.123 259.1)
XYZ	xyz(5.9331, 5.1581, 21.4475)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E81 #815512

analogous

#127681 #123E81 #1E1281

triadic

#123E81 #81123E #3E8112

tetradic

#123E81 #811276 #815512 #12811E

square

#123E81 #811276 #815512 #12811E

split-complementary

#123E81 #811E12 #768112

monochromatic

#040D1B #0B244B #123E81 #1958B7 #2C74E2

Accessibility & contrast

On white

10.34

#123E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#123E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E81

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E81	#FFFFFF	#000000	##FFFFFF
##123E81	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134583

Deuteranopia (green-blind)

#003C80

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #123e81;
/* rgb */ color: rgb(18, 62, 129);
/* oklch */ color: oklch(37.6% 0.123 259.1);

Tailwind

colors: {
  custom: {
    50: '#6572a6',
    500: '#123e81',
    950: '#000000',
  },
}

SCSS

$custom: #123e81;
$custom-light: #6572a6;
$custom-dark: #000000;

JSON

{
  "hex": "#123e81",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 129
  },
  "hsl": {
    "h": 216.216,
    "s": 75.51,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37615,
    "c": 0.12293,
    "h": 259.1
  },
  "luminance": 0.05159
}

Semantic roles & 50–950 ramp

primary

#123E81

secondary

#B78438

accent

#A736F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123E81

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

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