#12538F#12538F

#12538F is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.7% C 0.117 H 251.4°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#12538F
RGB	rgb(18, 83, 143)
HSL	hsl(209, 78%, 32%)
HSV	hsv(209, 87%, 56%)
CMYK	cmyk(87.4%, 42%, 0%, 43.9%)
CIE-LAB	lab(34.59, 3.74, -38.64)
CIE-LCH	lch(34.59, 38.82, 275.52°)
OKLab	oklab(43.66% -0.0372 -0.1106)
OKLCH	oklch(43.66% 0.117 251.4)
XYZ	xyz(8.2987, 8.2972, 27.1454)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12538F #8F4E12

analogous

#128F8D #12538F #12158F

triadic

#12538F #8F1253 #538F12

tetradic

#12538F #8D128F #8F4E12 #158F12

square

#12538F #8D128F #8F4E12 #158F12

split-complementary

#12538F #8F1215 #8F8D12

monochromatic

#041422 #0B3359 #12538F #1973C5 #3691E6

Accessibility & contrast

On white

7.90

#12538F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#12538F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12538F

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12538F	#FFFFFF	#000000	##FFFFFF
##12538F	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355791

Deuteranopia (green-blind)

#1F4C8E

Tritanopia (blue-blind)

#00616A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #12538f;
/* rgb */ color: rgb(18, 83, 143);
/* oklch */ color: oklch(43.7% 0.117 251.4);

Tailwind

colors: {
  custom: {
    50: '#6882b0',
    500: '#12538f',
    950: '#000000',
  },
}

SCSS

$custom: #12538f;
$custom-light: #6882b0;
$custom-dark: #000000;

JSON

{
  "hex": "#12538f",
  "rgb": {
    "r": 18,
    "g": 83,
    "b": 143
  },
  "hsl": {
    "h": 208.8,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.43658,
    "c": 0.11673,
    "h": 251.4
  },
  "luminance": 0.08298
}

Semantic roles & 50–950 ramp

primary

#12538F

secondary

#C37C3A

accent

#9034F4

background

#F6F7FA

surface

#ECEEF5

border

#C7C9CF

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #12538F

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

Preview Lab → · Contrast checker → · Palette generator →