#1A3F72#1A3F72

#1A3F72 is a dark, moderate cyan. Relative luminance 0.050; OKLCH L 37.0% C 0.097 H 257.2°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F72
RGB	rgb(26, 63, 114)
HSL	hsl(215, 63%, 27%)
HSV	hsv(215, 77%, 45%)
CMYK	cmyk(77.2%, 44.7%, 0%, 55.3%)
CIE-LAB	lab(26.70, 6.23, -33.22)
CIE-LCH	lch(26.70, 33.80, 280.62°)
OKLab	oklab(36.99% -0.0216 -0.095)
OKLCH	oklch(36.99% 0.097 257.2)
XYZ	xyz(5.2397, 4.9889, 16.6031)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F72 #724D1A

analogous

#1A6B72 #1A3F72 #211A72

triadic

#1A3F72 #721A3F #3F721A

tetradic

#1A3F72 #721A6B #724D1A #1A7221

square

#1A3F72 #721A6B #724D1A #1A7221

split-complementary

#1A3F72 #72211A #6B721A

monochromatic

#060E19 #0F2340 #1A3F72 #255BA4 #3577D1

Accessibility & contrast

On white

10.51

#1A3F72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1A3F72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F72

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F72	#FFFFFF	#000000	##FFFFFF
##1A3F72	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264374

Deuteranopia (green-blind)

#163B71

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a3f72;
/* rgb */ color: rgb(26, 63, 114);
/* oklch */ color: oklch(37.0% 0.097 257.2);

Tailwind

colors: {
  custom: {
    50: '#64739b',
    500: '#1a3f72',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f72;
$custom-light: #64739b;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f72",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 114
  },
  "hsl": {
    "h": 214.773,
    "s": 62.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.36985,
    "c": 0.09745,
    "h": 257.2
  },
  "luminance": 0.0499
}

Semantic roles & 50–950 ramp

primary

#1A3F72

secondary

#A77C41

accent

#A142E6

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1A3F72

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

Preview Lab → · Contrast checker → · Palette generator →