#123A80#123A80

#123A80 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.127 H 260.8°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#123A80
RGB	rgb(18, 58, 128)
HSL	hsl(218, 75%, 29%)
HSV	hsv(218, 86%, 50%)
CMYK	cmyk(85.9%, 54.7%, 0%, 49.8%)
CIE-LAB	lab(25.90, 14.62, -43.37)
CIE-LCH	lch(25.90, 45.77, 288.63°)
OKLab	oklab(36.61% -0.0203 -0.1251)
OKLCH	oklch(36.61% 0.127 260.8)
XYZ	xyz(5.6574, 4.7125, 21.0293)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A80 #805812

analogous

#127180 #123A80 #211280

triadic

#123A80 #80123A #3A8012

tetradic

#123A80 #801271 #805812 #128021

square

#123A80 #801271 #805812 #128021

split-complementary

#123A80 #802112 #718012

monochromatic

#040C1B #0A224A #123A80 #1A52B6 #2B6DE1

Accessibility & contrast

On white

10.81

#123A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#123A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A80

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A80	#FFFFFF	#000000	##FFFFFF
##123A80	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044382

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #123a80;
/* rgb */ color: rgb(18, 58, 128);
/* oklch */ color: oklch(36.6% 0.127 260.8);

Tailwind

colors: {
  custom: {
    50: '#656fa5',
    500: '#123a80',
    950: '#000000',
  },
}

SCSS

$custom: #123a80;
$custom-light: #656fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#123a80",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 128
  },
  "hsl": {
    "h": 218.182,
    "s": 75.342,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36612,
    "c": 0.12672,
    "h": 260.8
  },
  "luminance": 0.04713
}

Semantic roles & 50–950 ramp

primary

#123A80

secondary

#B68838

accent

#AE36F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123A80

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

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