#12578F#12578F

#12578F is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.6% C 0.112 H 248.8°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#12578F
RGB	rgb(18, 87, 143)
HSL	hsl(207, 78%, 32%)
HSV	hsv(207, 87%, 56%)
CMYK	cmyk(87.4%, 39.2%, 0%, 43.9%)
CIE-LAB	lab(35.84, 1.12, -36.65)
CIE-LCH	lch(35.84, 36.67, 271.76°)
OKLab	oklab(44.64% -0.0407 -0.1047)
OKLCH	oklch(44.64% 0.112 248.8)
XYZ	xyz(8.6137, 8.9271, 27.2504)
Luminance	0.0893 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12578F #8F4A12

analogous

#128F89 #12578F #12198F

triadic

#12578F #8F1257 #578F12

tetradic

#12578F #89128F #8F4A12 #198F12

square

#12578F #89128F #8F4A12 #198F12

split-complementary

#12578F #8F1219 #8F8912

monochromatic

#041522 #0B3659 #12578F #1978C5 #3697E6

Accessibility & contrast

On white

7.54

#12578F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#12578F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12578F

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12578F	#FFFFFF	#000000	##FFFFFF
##12578F	1.00	7.54	2.79	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5A91

Deuteranopia (green-blind)

#284F8E

Tritanopia (blue-blind)

#00646C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #12578f;
/* rgb */ color: rgb(18, 87, 143);
/* oklch */ color: oklch(44.6% 0.112 248.8);

Tailwind

colors: {
  custom: {
    50: '#6886b0',
    500: '#12578f',
    950: '#000000',
  },
}

SCSS

$custom: #12578f;
$custom-light: #6886b0;
$custom-dark: #000000;

JSON

{
  "hex": "#12578f",
  "rgb": {
    "r": 18,
    "g": 87,
    "b": 143
  },
  "hsl": {
    "h": 206.88,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.44636,
    "c": 0.11232,
    "h": 248.8
  },
  "luminance": 0.08928
}

Semantic roles & 50–950 ramp

primary

#12578F

secondary

#C3773A

accent

#8A34F4

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #12578F

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

Preview Lab → · Contrast checker → · Palette generator →