#1F4572#1F4572

#1F4572 is a dark, moderate cyan. Relative luminance 0.058; OKLCH L 38.7% C 0.088 H 254.2°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#1F4572
RGB	rgb(31, 69, 114)
HSL	hsl(213, 57%, 28%)
HSV	hsv(213, 73%, 45%)
CMYK	cmyk(72.8%, 39.5%, 0%, 55.3%)
CIE-LAB	lab(28.80, 2.93, -29.87)
CIE-LCH	lch(28.80, 30.01, 275.60°)
OKLab	oklab(38.67% -0.024 -0.085)
OKLCH	oklch(38.67% 0.088 254.2)
XYZ	xyz(5.7293, 5.7618, 16.7265)
Luminance	0.0576 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4572 #724C1F

analogous

#1F6E72 #1F4572 #221F72

triadic

#1F4572 #721F45 #45721F

tetradic

#1F4572 #721F6E #724C1F #1F7222

square

#1F4572 #721F6E #724C1F #1F7222

split-complementary

#1F4572 #72221F #6E721F

monochromatic

#070F18 #122842 #1F4572 #2C62A2 #4080CB

Accessibility & contrast

On white

9.76

#1F4572 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1F4572 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4572

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4572	#FFFFFF	#000000	##FFFFFF
##1F4572	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314874

Deuteranopia (green-blind)

#244071

Tritanopia (blue-blind)

#004F56

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f4572;
/* rgb */ color: rgb(31, 69, 114);
/* oklch */ color: oklch(38.7% 0.088 254.2);

Tailwind

colors: {
  custom: {
    50: '#66789b',
    500: '#1f4572',
    950: '#000000',
  },
}

SCSS

$custom: #1f4572;
$custom-light: #66789b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4572",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 114
  },
  "hsl": {
    "h": 212.53,
    "s": 57.241,
    "l": 28.431
  },
  "oklch": {
    "l": 0.38673,
    "c": 0.08831,
    "h": 254.2
  },
  "luminance": 0.05762
}

Semantic roles & 50–950 ramp

primary

#1F4572

secondary

#A67A47

accent

#9A47E0

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1F4572

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

Preview Lab → · Contrast checker → · Palette generator →