#123A83#123A83

#123A83 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.9% C 0.131 H 261.2°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#123A83
RGB	rgb(18, 58, 131)
HSL	hsl(219, 76%, 29%)
HSV	hsv(219, 86%, 51%)
CMYK	cmyk(86.3%, 55.7%, 0%, 48.6%)
CIE-LAB	lab(26.14, 15.88, -44.86)
CIE-LCH	lch(26.14, 47.59, 289.49°)
OKLab	oklab(36.87% -0.02 -0.1295)
OKLCH	oklch(36.87% 0.131 261.2)
XYZ	xyz(5.8578, 4.7927, 22.0847)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A83 #835B12

analogous

#127383 #123A83 #231283

triadic

#123A83 #83123A #3A8312

tetradic

#123A83 #831273 #835B12 #128323

square

#123A83 #831273 #835B12 #128323

split-complementary

#123A83 #832312 #738312

monochromatic

#040C1B #0B224D #123A83 #1952B9 #2D6DE2

Accessibility & contrast

On white

10.72

#123A83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#123A83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A83

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A83	#FFFFFF	#000000	##FFFFFF
##123A83	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004386

Deuteranopia (green-blind)

#003982

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #123a83;
/* rgb */ color: rgb(18, 58, 131);
/* oklch */ color: oklch(36.9% 0.131 261.2);

Tailwind

colors: {
  custom: {
    50: '#666fa8',
    500: '#123a83',
    950: '#000000',
  },
}

SCSS

$custom: #123a83;
$custom-light: #666fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#123a83",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 131
  },
  "hsl": {
    "h": 218.761,
    "s": 75.839,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36867,
    "c": 0.13101,
    "h": 261.2
  },
  "luminance": 0.04793
}

Semantic roles & 50–950 ramp

primary

#123A83

secondary

#B88B38

accent

#B035F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #123A83

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

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