#1F5366#1F5366

#1F5366 is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.6% C 0.063 H 225.6°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#1F5366
RGB	rgb(31, 83, 102)
HSL	hsl(196, 53%, 26%)
HSV	hsv(196, 70%, 40%)
CMYK	cmyk(69.6%, 18.6%, 0%, 60%)
CIE-LAB	lab(32.78, -10.56, -16.08)
CIE-LCH	lch(32.78, 19.23, 236.69°)
OKLab	oklab(41.62% -0.044 -0.0449)
OKLCH	oklch(41.62% 0.063 225.6)
XYZ	xyz(6.0556, 7.4365, 13.6840)
Luminance	0.0744 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5366 #66321F

analogous

#1F6655 #1F5366 #1F2F66

triadic

#1F5366 #661F53 #53661F

tetradic

#1F5366 #551F66 #66321F #2F661F

square

#1F5366 #551F66 #66321F #2F661F

split-complementary

#1F5366 #661F2F #66551F

monochromatic

#071317 #112D37 #1F5366 #2D7995 #3C9FC4

Accessibility & contrast

On white

8.44

#1F5366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1F5366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5366

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5366	#FFFFFF	#000000	##FFFFFF
##1F5366	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495167

Deuteranopia (green-blind)

#3F4A66

Tritanopia (blue-blind)

#005959

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f5366;
/* rgb */ color: rgb(31, 83, 102);
/* oklch */ color: oklch(41.6% 0.063 225.6);

Tailwind

colors: {
  custom: {
    50: '#648391',
    500: '#1f5366',
    950: '#000000',
  },
}

SCSS

$custom: #1f5366;
$custom-light: #648391;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5366",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 102
  },
  "hsl": {
    "h": 196.056,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.41617,
    "c": 0.06289,
    "h": 225.6
  },
  "luminance": 0.07437
}

Semantic roles & 50–950 ramp

primary

#1F5366

secondary

#9A5D46

accent

#724BDD

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1F5366

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

Preview Lab → · Contrast checker → · Palette generator →