#1F4166#1F4166

#1F4166 is a dark, moderate cyan. Relative luminance 0.050; OKLCH L 36.9% C 0.075 H 252.3°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F4166
RGB	rgb(31, 65, 102)
HSL	hsl(211, 53%, 26%)
HSV	hsv(211, 70%, 40%)
CMYK	cmyk(69.6%, 36.3%, 0%, 60%)
CIE-LAB	lab(26.82, 0.91, -25.36)
CIE-LCH	lch(26.82, 25.38, 272.06°)
OKLab	oklab(36.9% -0.023 -0.0719)
OKLCH	oklch(36.9% 0.075 252.3)
XYZ	xyz(4.8528, 5.0307, 13.2831)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4166 #66441F

analogous

#1F6466 #1F4166 #211F66

triadic

#1F4166 #661F41 #41661F

tetradic

#1F4166 #661F64 #66441F #1F6621

square

#1F4166 #661F64 #66441F #1F6621

split-complementary

#1F4166 #66211F #64661F

monochromatic

#070F17 #112337 #1F4166 #2D5F95 #3C7DC4

Accessibility & contrast

On white

10.47

#1F4166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1F4166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4166

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4166	#FFFFFF	#000000	##FFFFFF
##1F4166	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314368

Deuteranopia (green-blind)

#273C65

Tritanopia (blue-blind)

#004A4E

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1f4166;
/* rgb */ color: rgb(31, 65, 102);
/* oklch */ color: oklch(36.9% 0.075 252.3);

Tailwind

colors: {
  custom: {
    50: '#637592',
    500: '#1f4166',
    950: '#000000',
  },
}

SCSS

$custom: #1f4166;
$custom-light: #637592;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4166",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 102
  },
  "hsl": {
    "h": 211.268,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.36898,
    "c": 0.07546,
    "h": 252.3
  },
  "luminance": 0.05031
}

Semantic roles & 50–950 ramp

primary

#1F4166

secondary

#9A7246

accent

#974BDD

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06080D

muted

#7A7B7D

Preview Lab

Preview with #1F4166

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

Preview Lab → · Contrast checker → · Palette generator →