#12577E#12577E

#12577E is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.6% C 0.091 H 239.7°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#12577E
RGB	rgb(18, 87, 126)
HSL	hsl(202, 75%, 28%)
HSV	hsv(202, 86%, 49%)
CMYK	cmyk(85.7%, 31%, 0%, 50.6%)
CIE-LAB	lab(34.90, -5.70, -27.74)
CIE-LCH	lch(34.90, 28.32, 258.39°)
OKLab	oklab(43.59% -0.0459 -0.0786)
OKLCH	oklch(43.59% 0.091 239.7)
XYZ	xyz(7.4220, 8.4504, 20.9745)
Luminance	0.0845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12577E #7E3912

analogous

#127E6F #12577E #12217E

triadic

#12577E #7E1257 #577E12

tetradic

#12577E #6F127E #7E3912 #217E12

square

#12577E #6F127E #7E3912 #217E12

split-complementary

#12577E #7E1221 #7E6F12

monochromatic

#04121B #0A3248 #12577E #1A7CB4 #2A9FE1

Accessibility & contrast

On white

7.81

#12577E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#12577E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12577E

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12577E	#FFFFFF	#000000	##FFFFFF
##12577E	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445780

Deuteranopia (green-blind)

#364E7D

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #12577e;
/* rgb */ color: rgb(18, 87, 126);
/* oklch */ color: oklch(43.6% 0.091 239.7);

Tailwind

colors: {
  custom: {
    50: '#6586a3',
    500: '#12577e',
    950: '#000000',
  },
}

SCSS

$custom: #12577e;
$custom-light: #6586a3;
$custom-dark: #000000;

JSON

{
  "hex": "#12577e",
  "rgb": {
    "r": 18,
    "g": 87,
    "b": 126
  },
  "hsl": {
    "h": 201.667,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.43588,
    "c": 0.09106,
    "h": 239.7
  },
  "luminance": 0.08451
}

Semantic roles & 50–950 ramp

primary

#12577E

secondary

#B46538

accent

#7A36F2

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#060B0F

muted

#7A7C7F

Preview Lab

Preview with #12577E

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

Preview Lab → · Contrast checker → · Palette generator →