#123A63#123A63

#123A63 is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.084 H 252.1°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#123A63
RGB	rgb(18, 58, 99)
HSL	hsl(210, 69%, 23%)
HSV	hsv(210, 82%, 39%)
CMYK	cmyk(81.8%, 41.4%, 0%, 61.2%)
CIE-LAB	lab(23.85, 2.34, -28.16)
CIE-LCH	lch(23.85, 28.26, 274.75°)
OKLab	oklab(34.38% -0.0259 -0.0804)
OKLCH	oklch(34.38% 0.084 252.1)
XYZ	xyz(4.0138, 4.0551, 12.3731)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A63 #633B12

analogous

#126263 #123A63 #121263

triadic

#123A63 #63123A #3A6312

tetradic

#123A63 #631262 #633B12 #126312

square

#123A63 #631262 #633B12 #126312

split-complementary

#123A63 #631212 #626312

monochromatic

#050F1A #091C2F #123A63 #1B5897 #2577CB

Accessibility & contrast

On white

11.59

#123A63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#123A63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A63

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A63	#FFFFFF	#000000	##FFFFFF
##123A63	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273D65

Deuteranopia (green-blind)

#1A3562

Tritanopia (blue-blind)

#004449

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #123a63;
/* rgb */ color: rgb(18, 58, 99);
/* oklch */ color: oklch(34.4% 0.084 252.1);

Tailwind

colors: {
  custom: {
    50: '#5e6f8f',
    500: '#123a63',
    950: '#000000',
  },
}

SCSS

$custom: #123a63;
$custom-light: #5e6f8f;
$custom-dark: #000000;

JSON

{
  "hex": "#123a63",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 99
  },
  "hsl": {
    "h": 210.37,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34378,
    "c": 0.08443,
    "h": 252.1
  },
  "luminance": 0.04056
}

Semantic roles & 50–950 ramp

primary

#123A63

secondary

#9B6936

accent

#953CEC

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #123A63

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

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