#123B80#123B80

#123B80 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.8% C 0.125 H 260.3°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#123B80
RGB	rgb(18, 59, 128)
HSL	hsl(218, 75%, 29%)
HSV	hsv(218, 86%, 50%)
CMYK	cmyk(85.9%, 53.9%, 0%, 49.8%)
CIE-LAB	lab(26.20, 13.91, -42.88)
CIE-LCH	lch(26.20, 45.08, 287.98°)
OKLab	oklab(36.84% -0.021 -0.1236)
OKLCH	oklch(36.84% 0.125 260.3)
XYZ	xyz(5.7083, 4.8143, 21.0463)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B80 #805712

analogous

#127280 #123B80 #201280

triadic

#123B80 #80123B #3B8012

tetradic

#123B80 #801272 #805712 #128020

square

#123B80 #801272 #805712 #128020

split-complementary

#123B80 #802012 #728012

monochromatic

#040C1B #0A224A #123B80 #1A54B6 #2B6FE1

Accessibility & contrast

On white

10.70

#123B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#123B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B80

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B80	#FFFFFF	#000000	##FFFFFF
##123B80	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094382

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #123b80;
/* rgb */ color: rgb(18, 59, 128);
/* oklch */ color: oklch(36.8% 0.125 260.3);

Tailwind

colors: {
  custom: {
    50: '#6570a5',
    500: '#123b80',
    950: '#000000',
  },
}

SCSS

$custom: #123b80;
$custom-light: #6570a5;
$custom-dark: #000000;

JSON

{
  "hex": "#123b80",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 128
  },
  "hsl": {
    "h": 217.636,
    "s": 75.342,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36841,
    "c": 0.12541,
    "h": 260.3
  },
  "luminance": 0.04815
}

Semantic roles & 50–950 ramp

primary

#123B80

secondary

#B68738

accent

#AC36F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123B80

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

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