#12273B#12273B

#12273B is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.6% C 0.046 H 248.9°. Best body text is #FFFFFF at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#12273B
RGB	rgb(18, 39, 59)
HSL	hsl(209, 53%, 15%)
HSV	hsv(209, 69%, 23%)
CMYK	cmyk(69.5%, 33.9%, 0%, 76.9%)
CIE-LAB	lab(14.93, -0.92, -15.36)
CIE-LCH	lch(14.93, 15.39, 266.55°)
OKLab	oklab(26.6% -0.0167 -0.0433)
OKLCH	oklch(26.6% 0.046 248.9)
XYZ	xyz(1.7641, 1.8952, 4.4097)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12273B #3B2612

analogous

#123B3A #12273B #12133B

triadic

#12273B #3B1227 #273B12

tetradic

#12273B #3A123B #3B2612 #133B12

square

#12273B #3A123B #3B2612 #133B12

split-complementary

#12273B #3B1213 #3B3A12

monochromatic

#070F17 #070F17 #12273B #20466A #2F6599

Accessibility & contrast

On white

15.23

#12273B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#12273B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12273B

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12273B	#FFFFFF	#000000	##FFFFFF
##12273B	1.00	15.23	1.38	15.23
#FFFFFF	15.23	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E283C

Deuteranopia (green-blind)

#19243B

Tritanopia (blue-blind)

#002C2E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #12273b;
/* rgb */ color: rgb(18, 39, 59);
/* oklch */ color: oklch(26.6% 0.046 248.9);

Tailwind

colors: {
  custom: {
    50: '#546071',
    500: '#12273b',
    950: '#000000',
  },
}

SCSS

$custom: #12273b;
$custom-light: #546071;
$custom-dark: #000000;

JSON

{
  "hex": "#12273b",
  "rgb": {
    "r": 18,
    "g": 39,
    "b": 59
  },
  "hsl": {
    "h": 209.268,
    "s": 53.247,
    "l": 15.098
  },
  "oklch": {
    "l": 0.26596,
    "c": 0.04638,
    "h": 248.9
  },
  "luminance": 0.01895
}

Semantic roles & 50–950 ramp

primary

#12273B

secondary

#745435

accent

#924BDD

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030507

muted

#78797A

Preview Lab

Preview with #12273B

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

Preview Lab → · Contrast checker → · Palette generator →