#123A55#123A55

#123A55 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.5% C 0.065 H 242.1°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#123A55
RGB	rgb(18, 58, 85)
HSL	hsl(204, 65%, 20%)
HSV	hsv(204, 79%, 33%)
CMYK	cmyk(78.8%, 31.8%, 0%, 66.7%)
CIE-LAB	lab(23.03, -3.48, -20.30)
CIE-LCH	lch(23.03, 20.59, 260.28°)
OKLab	oklab(33.47% -0.0304 -0.0574)
OKLCH	oklch(33.47% 0.065 242.1)
XYZ	xyz(3.4016, 3.8102, 9.1487)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A55 #552D12

analogous

#12554E #123A55 #121855

triadic

#123A55 #55123A #3A5512

tetradic

#123A55 #4E1255 #552D12 #185512

square

#123A55 #4E1255 #552D12 #185512

split-complementary

#123A55 #551218 #554E12

monochromatic

#051119 #071822 #123A55 #1D5C88 #277FBA

Accessibility & contrast

On white

11.92

#123A55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#123A55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A55

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A55	#FFFFFF	#000000	##FFFFFF
##123A55	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3A56

Deuteranopia (green-blind)

#243455

Tritanopia (blue-blind)

#004143

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123a55;
/* rgb */ color: rgb(18, 58, 85);
/* oklch */ color: oklch(33.5% 0.065 242.1);

Tailwind

colors: {
  custom: {
    50: '#5a7085',
    500: '#123a55',
    950: '#000000',
  },
}

SCSS

$custom: #123a55;
$custom-light: #5a7085;
$custom-dark: #000000;

JSON

{
  "hex": "#123a55",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 85
  },
  "hsl": {
    "h": 204.179,
    "s": 65.049,
    "l": 20.196
  },
  "oklch": {
    "l": 0.33466,
    "c": 0.06494,
    "h": 242.1
  },
  "luminance": 0.03811
}

Semantic roles & 50–950 ramp

primary

#123A55

secondary

#8E5935

accent

#8440E8

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #123A55

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

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