#123A73#123A73

#123A73 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.108 H 258.1°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#123A73
RGB	rgb(18, 58, 115)
HSL	hsl(215, 73%, 26%)
HSV	hsv(215, 84%, 45%)
CMYK	cmyk(84.3%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(24.93, 9.12, -36.72)
CIE-LCH	lch(24.93, 37.84, 283.95°)
OKLab	oklab(35.56% -0.0223 -0.1055)
OKLCH	oklch(35.56% 0.108 258.1)
XYZ	xyz(4.8559, 4.3919, 16.8081)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A73 #734B12

analogous

#126A73 #123A73 #1B1273

triadic

#123A73 #73123A #3A7312

tetradic

#123A73 #73126A #734B12 #12731B

square

#123A73 #73126A #734B12 #12731B

split-complementary

#123A73 #731B12 #6A7312

monochromatic

#040D1A #0A1F3E #123A73 #1A55A8 #236FDD

Accessibility & contrast

On white

11.18

#123A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#123A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A73

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A73	#FFFFFF	#000000	##FFFFFF
##123A73	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4075

Deuteranopia (green-blind)

#003772

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123a73;
/* rgb */ color: rgb(18, 58, 115);
/* oklch */ color: oklch(35.6% 0.108 258.1);

Tailwind

colors: {
  custom: {
    50: '#626f9c',
    500: '#123a73',
    950: '#000000',
  },
}

SCSS

$custom: #123a73;
$custom-light: #626f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#123a73",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 215.258,
    "s": 72.932,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35558,
    "c": 0.10785,
    "h": 258.1
  },
  "luminance": 0.04393
}

Semantic roles & 50–950 ramp

primary

#123A73

secondary

#AA7A37

accent

#A438F0

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #123A73

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

Preview Lab → · Contrast checker → · Palette generator →