#1F445A#1F445A

#1F445A is a dark, muted cyan. Relative luminance 0.052; OKLCH L 37.0% C 0.057 H 237.1°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F445A
RGB	rgb(31, 68, 90)
HSL	hsl(202, 49%, 24%)
HSV	hsv(202, 66%, 35%)
CMYK	cmyk(65.6%, 24.4%, 0%, 64.7%)
CIE-LAB	lab(27.20, -5.61, -17.04)
CIE-LCH	lch(27.20, 17.94, 251.77°)
OKLab	oklab(36.99% -0.0308 -0.0477)
OKLCH	oklch(36.99% 0.057 237.1)
XYZ	xyz(4.4770, 5.1633, 10.4316)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F445A #5A351F

analogous

#1F5A52 #1F445A #1F265A

triadic

#1F445A #5A1F44 #445A1F

tetradic

#1F445A #521F5A #5A351F #265A1F

square

#1F445A #521F5A #5A351F #265A1F

split-complementary

#1F445A #5A1F26 #5A521F

monochromatic

#081117 #0F222C #1F445A #2F6688 #3E89B5

Accessibility & contrast

On white

10.33

#1F445A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1F445A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F445A

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F445A	#FFFFFF	#000000	##FFFFFF
##1F445A	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A445B

Deuteranopia (green-blind)

#323E5A

Tritanopia (blue-blind)

#004A4B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f445a;
/* rgb */ color: rgb(31, 68, 90);
/* oklch */ color: oklch(37.0% 0.057 237.1);

Tailwind

colors: {
  custom: {
    50: '#617788',
    500: '#1f445a',
    950: '#000000',
  },
}

SCSS

$custom: #1f445a;
$custom-light: #617788;
$custom-dark: #000000;

JSON

{
  "hex": "#1f445a",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 90
  },
  "hsl": {
    "h": 202.373,
    "s": 48.76,
    "l": 23.725
  },
  "oklch": {
    "l": 0.36987,
    "c": 0.05682,
    "h": 237.1
  },
  "luminance": 0.05164
}

Semantic roles & 50–950 ramp

primary

#1F445A

secondary

#8F6146

accent

#834FD8

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1F445A

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

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