#12458C#12458C

#12458C is a dark, vivid cyan. Relative luminance 0.063; OKLCH L 40.1% C 0.130 H 258.1°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#12458C
RGB	rgb(18, 69, 140)
HSL	hsl(215, 77%, 31%)
HSV	hsv(215, 87%, 55%)
CMYK	cmyk(87.1%, 50.7%, 0%, 45.1%)
CIE-LAB	lab(30.10, 11.96, -44.02)
CIE-LCH	lch(30.10, 45.62, 285.19°)
OKLab	oklab(40.11% -0.0267 -0.1268)
OKLCH	oklch(40.11% 0.13 258.1)
XYZ	xyz(7.1095, 6.2774, 25.6428)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12458C #8C5912

analogous

#12828C #12458C #1C128C

triadic

#12458C #8C1245 #458C12

tetradic

#12458C #8C1282 #8C5912 #128C1C

square

#12458C #8C1282 #8C5912 #128C1C

split-complementary

#12458C #8C1C12 #828C12

monochromatic

#041020 #0B2A56 #12458C #1960C2 #347EE5

Accessibility & contrast

On white

9.31

#12458C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#12458C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12458C

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12458C	#FFFFFF	#000000	##FFFFFF
##12458C	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194D8F

Deuteranopia (green-blind)

#00428B

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #12458c;
/* rgb */ color: rgb(18, 69, 140);
/* oklch */ color: oklch(40.1% 0.130 258.1);

Tailwind

colors: {
  custom: {
    50: '#6878ae',
    500: '#12458c',
    950: '#000000',
  },
}

SCSS

$custom: #12458c;
$custom-light: #6878ae;
$custom-dark: #000000;

JSON

{
  "hex": "#12458c",
  "rgb": {
    "r": 18,
    "g": 69,
    "b": 140
  },
  "hsl": {
    "h": 214.918,
    "s": 77.215,
    "l": 30.98
  },
  "oklch": {
    "l": 0.40113,
    "c": 0.12956,
    "h": 258.1
  },
  "luminance": 0.06278
}

Semantic roles & 50–950 ramp

primary

#12458C

secondary

#C08839

accent

#A434F4

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #12458C

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

Preview Lab → · Contrast checker → · Palette generator →