#1F4366#1F4366

#1F4366 is a dark, moderate cyan. Relative luminance 0.053; OKLCH L 37.4% C 0.073 H 249.8°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F4366
RGB	rgb(31, 67, 102)
HSL	hsl(210, 53%, 26%)
HSV	hsv(210, 70%, 40%)
CMYK	cmyk(69.6%, 34.3%, 0%, 60%)
CIE-LAB	lab(27.48, -0.43, -24.33)
CIE-LCH	lch(27.48, 24.34, 269.00°)
OKLab	oklab(37.41% -0.0253 -0.0688)
OKLCH	oklch(37.41% 0.073 249.8)
XYZ	xyz(4.9696, 5.2644, 13.3220)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4366 #66421F

analogous

#1F6665 #1F4366 #1F2066

triadic

#1F4366 #661F43 #43661F

tetradic

#1F4366 #651F66 #66421F #20661F

square

#1F4366 #651F66 #66421F #20661F

split-complementary

#1F4366 #661F20 #66651F

monochromatic

#070F17 #112437 #1F4366 #2D6295 #3C81C4

Accessibility & contrast

On white

10.23

#1F4366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1F4366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4366

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4366	#FFFFFF	#000000	##FFFFFF
##1F4366	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344567

Deuteranopia (green-blind)

#2A3E65

Tritanopia (blue-blind)

#004B50

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f4366;
/* rgb */ color: rgb(31, 67, 102);
/* oklch */ color: oklch(37.4% 0.073 249.8);

Tailwind

colors: {
  custom: {
    50: '#637692',
    500: '#1f4366',
    950: '#000000',
  },
}

SCSS

$custom: #1f4366;
$custom-light: #637692;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4366",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 102
  },
  "hsl": {
    "h": 209.577,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.3741,
    "c": 0.07335,
    "h": 249.8
  },
  "luminance": 0.05265
}

Semantic roles & 50–950 ramp

primary

#1F4366

secondary

#9A7046

accent

#934BDD

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06080D

muted

#7A7B7D

Preview Lab

Preview with #1F4366

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

Preview Lab → · Contrast checker → · Palette generator →