#1F4355#1F4355

#1F4355 is a dark, muted cyan. Relative luminance 0.050; OKLCH L 36.5% C 0.052 H 232.4°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F4355
RGB	rgb(31, 67, 85)
HSL	hsl(200, 47%, 23%)
HSV	hsv(200, 64%, 33%)
CMYK	cmyk(63.5%, 21.2%, 0%, 66.7%)
CIE-LAB	lab(26.62, -6.79, -14.68)
CIE-LCH	lch(26.62, 16.18, 245.16°)
OKLab	oklab(36.46% -0.0316 -0.041)
OKLCH	oklch(36.46% 0.052 232.4)
XYZ	xyz(4.2113, 4.9611, 9.3282)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4355 #55311F

analogous

#1F554C #1F4355 #1F2855

triadic

#1F4355 #551F43 #43551F

tetradic

#1F4355 #4C1F55 #55311F #28551F

square

#1F4355 #4C1F55 #55311F #28551F

split-complementary

#1F4355 #551F28 #554C1F

monochromatic

#081216 #0F2028 #1F4355 #2F6682 #408AAF

Accessibility & contrast

On white

10.54

#1F4355 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1F4355 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4355

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4355	#FFFFFF	#000000	##FFFFFF
##1F4355	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4256

Deuteranopia (green-blind)

#333C55

Tritanopia (blue-blind)

#004849

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1f4355;
/* rgb */ color: rgb(31, 67, 85);
/* oklch */ color: oklch(36.5% 0.052 232.4);

Tailwind

colors: {
  custom: {
    50: '#607785',
    500: '#1f4355',
    950: '#000000',
  },
}

SCSS

$custom: #1f4355;
$custom-light: #607785;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4355",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 85
  },
  "hsl": {
    "h": 200,
    "s": 46.552,
    "l": 22.745
  },
  "oklch": {
    "l": 0.36457,
    "c": 0.05174,
    "h": 232.4
  },
  "luminance": 0.04961
}

Semantic roles & 50–950 ramp

primary

#1F4355

secondary

#8A5D46

accent

#7E52D6

background

#F5F7F8

surface

#EAEDEF

border

#C6C8CA

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1F4355

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

Preview Lab → · Contrast checker → · Palette generator →