#123B53#123B53

#123B53 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.062 H 238.4°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#123B53
RGB	rgb(18, 59, 83)
HSL	hsl(202, 64%, 20%)
HSV	hsv(202, 78%, 33%)
CMYK	cmyk(78.3%, 28.9%, 0%, 67.5%)
CIE-LAB	lab(23.27, -4.95, -18.61)
CIE-LCH	lch(23.27, 19.25, 255.09°)
OKLab	oklab(33.62% -0.0323 -0.0525)
OKLCH	oklch(33.62% 0.062 238.4)
XYZ	xyz(3.3741, 3.8807, 8.7532)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B53 #532A12

analogous

#12534B #123B53 #121B53

triadic

#123B53 #53123B #3B5312

tetradic

#123B53 #4B1253 #532A12 #1B5312

square

#123B53 #4B1253 #532A12 #1B5312

split-complementary

#123B53 #53121B #534B12

monochromatic

#051219 #071721 #123B53 #1D5F85 #2883B8

Accessibility & contrast

On white

11.82

#123B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#123B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B53

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B53	#FFFFFF	#000000	##FFFFFF
##123B53	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303B54

Deuteranopia (green-blind)

#273553

Tritanopia (blue-blind)

#004143

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123b53;
/* rgb */ color: rgb(18, 59, 83);
/* oklch */ color: oklch(33.6% 0.062 238.4);

Tailwind

colors: {
  custom: {
    50: '#5a7083',
    500: '#123b53',
    950: '#000000',
  },
}

SCSS

$custom: #123b53;
$custom-light: #5a7083;
$custom-dark: #000000;

JSON

{
  "hex": "#123b53",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 83
  },
  "hsl": {
    "h": 202.154,
    "s": 64.356,
    "l": 19.804
  },
  "oklch": {
    "l": 0.33621,
    "c": 0.0616,
    "h": 238.4
  },
  "luminance": 0.03881
}

Semantic roles & 50–950 ramp

primary

#123B53

secondary

#8C5535

accent

#7E40E7

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070A

muted

#797A7C

Preview Lab

Preview with #123B53

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

Preview Lab → · Contrast checker → · Palette generator →