#123A54#123A54

#123A54 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.064 H 241.1°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#123A54
RGB	rgb(18, 58, 84)
HSL	hsl(204, 65%, 20%)
HSV	hsv(204, 79%, 33%)
CMYK	cmyk(78.6%, 31%, 0%, 67.1%)
CIE-LAB	lab(22.98, -3.88, -19.72)
CIE-LCH	lch(22.98, 20.10, 258.86°)
OKLab	oklab(33.41% -0.0307 -0.0557)
OKLCH	oklch(33.41% 0.064 241.1)
XYZ	xyz(3.3621, 3.7944, 8.9410)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A54 #542C12

analogous

#12544D #123A54 #121954

triadic

#123A54 #54123A #3A5412

tetradic

#123A54 #4D1254 #542C12 #195412

square

#123A54 #4D1254 #542C12 #195412

split-complementary

#123A54 #541219 #544D12

monochromatic

#051119 #071722 #123A54 #1D5D86 #2880B9

Accessibility & contrast

On white

11.94

#123A54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#123A54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A54

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A54	#FFFFFF	#000000	##FFFFFF
##123A54	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3A55

Deuteranopia (green-blind)

#253454

Tritanopia (blue-blind)

#004043

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123a54;
/* rgb */ color: rgb(18, 58, 84);
/* oklch */ color: oklch(33.4% 0.064 241.1);

Tailwind

colors: {
  custom: {
    50: '#5a7084',
    500: '#123a54',
    950: '#000000',
  },
}

SCSS

$custom: #123a54;
$custom-light: #5a7084;
$custom-dark: #000000;

JSON

{
  "hex": "#123a54",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 84
  },
  "hsl": {
    "h": 203.636,
    "s": 64.706,
    "l": 20
  },
  "oklch": {
    "l": 0.33406,
    "c": 0.06364,
    "h": 241.1
  },
  "luminance": 0.03795
}

Semantic roles & 50–950 ramp

primary

#123A54

secondary

#8D5835

accent

#8240E8

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #123A54

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

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