#123E80#123E80

#123E80 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.5% C 0.122 H 258.9°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#123E80
RGB	rgb(18, 62, 128)
HSL	hsl(216, 75%, 29%)
HSV	hsv(216, 86%, 50%)
CMYK	cmyk(85.9%, 51.6%, 0%, 49.8%)
CIE-LAB	lab(27.11, 11.80, -41.41)
CIE-LCH	lch(27.11, 43.06, 285.90°)
OKLab	oklab(37.54% -0.0233 -0.1192)
OKLCH	oklch(37.54% 0.122 258.9)
XYZ	xyz(5.8669, 5.1316, 21.0992)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E80 #805412

analogous

#127580 #123E80 #1D1280

triadic

#123E80 #80123E #3E8012

tetradic

#123E80 #801275 #805412 #12801D

square

#123E80 #801275 #805412 #12801D

split-complementary

#123E80 #801D12 #758012

monochromatic

#040D1B #0A244A #123E80 #1A58B6 #2B74E1

Accessibility & contrast

On white

10.36

#123E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#123E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E80

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E80	#FFFFFF	#000000	##FFFFFF
##123E80	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154582

Deuteranopia (green-blind)

#003B7F

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #123e80;
/* rgb */ color: rgb(18, 62, 128);
/* oklch */ color: oklch(37.5% 0.122 258.9);

Tailwind

colors: {
  custom: {
    50: '#6572a5',
    500: '#123e80',
    950: '#000000',
  },
}

SCSS

$custom: #123e80;
$custom-light: #6572a5;
$custom-dark: #000000;

JSON

{
  "hex": "#123e80",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 128
  },
  "hsl": {
    "h": 216,
    "s": 75.342,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37535,
    "c": 0.12151,
    "h": 258.9
  },
  "luminance": 0.05132
}

Semantic roles & 50–950 ramp

primary

#123E80

secondary

#B68338

accent

#A736F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123E80

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

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