#123A53#123A53

#123A53 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.3% C 0.062 H 240.1°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#123A53
RGB	rgb(18, 58, 83)
HSL	hsl(203, 64%, 20%)
HSV	hsv(203, 78%, 33%)
CMYK	cmyk(78.3%, 30.1%, 0%, 67.5%)
CIE-LAB	lab(22.93, -4.29, -19.15)
CIE-LCH	lch(22.93, 19.62, 257.37°)
OKLab	oklab(33.35% -0.0311 -0.054)
OKLCH	oklch(33.35% 0.062 240.1)
XYZ	xyz(3.3232, 3.7789, 8.7362)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A53 #532B12

analogous

#12534C #123A53 #121A53

triadic

#123A53 #53123A #3A5312

tetradic

#123A53 #4C1253 #532B12 #1A5312

square

#123A53 #4C1253 #532B12 #1A5312

split-complementary

#123A53 #53121A #534C12

monochromatic

#051219 #071721 #123A53 #1D5D85 #2880B8

Accessibility & contrast

On white

11.96

#123A53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#123A53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A53

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A53	#FFFFFF	#000000	##FFFFFF
##123A53	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3A54

Deuteranopia (green-blind)

#253453

Tritanopia (blue-blind)

#004043

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123a53;
/* rgb */ color: rgb(18, 58, 83);
/* oklch */ color: oklch(33.3% 0.062 240.1);

Tailwind

colors: {
  custom: {
    50: '#5a7083',
    500: '#123a53',
    950: '#000000',
  },
}

SCSS

$custom: #123a53;
$custom-light: #5a7083;
$custom-dark: #000000;

JSON

{
  "hex": "#123a53",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 83
  },
  "hsl": {
    "h": 203.077,
    "s": 64.356,
    "l": 19.804
  },
  "oklch": {
    "l": 0.33346,
    "c": 0.06237,
    "h": 240.1
  },
  "luminance": 0.03779
}

Semantic roles & 50–950 ramp

primary

#123A53

secondary

#8C5635

accent

#8140E7

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070A

muted

#797A7C

Preview Lab

Preview with #123A53

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

Preview Lab → · Contrast checker → · Palette generator →