#1F4574#1F4574

#1F4574 is a dark, moderate cyan. Relative luminance 0.058; OKLCH L 38.8% C 0.091 H 255.1°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#1F4574
RGB	rgb(31, 69, 116)
HSL	hsl(213, 58%, 29%)
HSV	hsv(213, 73%, 45%)
CMYK	cmyk(73.3%, 40.5%, 0%, 54.5%)
CIE-LAB	lab(28.92, 3.72, -30.94)
CIE-LCH	lch(28.92, 31.16, 276.85°)
OKLab	oklab(38.81% -0.0235 -0.0881)
OKLCH	oklch(38.81% 0.091 255.1)
XYZ	xyz(5.8444, 5.8079, 17.3326)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4574 #744E1F

analogous

#1F7074 #1F4574 #231F74

triadic

#1F4574 #741F45 #45741F

tetradic

#1F4574 #741F70 #744E1F #1F7423

square

#1F4574 #741F70 #744E1F #1F7423

split-complementary

#1F4574 #74231F #70741F

monochromatic

#060E18 #122844 #1F4574 #2C62A4 #417FCC

Accessibility & contrast

On white

9.71

#1F4574 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1F4574 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4574

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4574	#FFFFFF	#000000	##FFFFFF
##1F4574	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4876

Deuteranopia (green-blind)

#234173

Tritanopia (blue-blind)

#005057

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f4574;
/* rgb */ color: rgb(31, 69, 116);
/* oklch */ color: oklch(38.8% 0.091 255.1);

Tailwind

colors: {
  custom: {
    50: '#66789c',
    500: '#1f4574',
    950: '#000000',
  },
}

SCSS

$custom: #1f4574;
$custom-light: #66789c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4574",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 116
  },
  "hsl": {
    "h": 213.176,
    "s": 57.823,
    "l": 28.824
  },
  "oklch": {
    "l": 0.38805,
    "c": 0.0912,
    "h": 255.1
  },
  "luminance": 0.05809
}

Semantic roles & 50–950 ramp

primary

#1F4574

secondary

#A87D47

accent

#9C47E1

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1F4574

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

Preview Lab → · Contrast checker → · Palette generator →