#1F445B#1F445B

#1F445B is a dark, muted cyan. Relative luminance 0.052; OKLCH L 37.0% C 0.058 H 238.4°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#1F445B
RGB	rgb(31, 68, 91)
HSL	hsl(203, 49%, 24%)
HSV	hsv(203, 66%, 36%)
CMYK	cmyk(65.9%, 25.3%, 0%, 64.3%)
CIE-LAB	lab(27.24, -5.24, -17.61)
CIE-LCH	lch(27.24, 18.38, 253.42°)
OKLab	oklab(37.04% -0.0304 -0.0494)
OKLCH	oklch(37.04% 0.058 238.4)
XYZ	xyz(4.5198, 5.1804, 10.6572)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F445B #5B361F

analogous

#1F5B54 #1F445B #1F265B

triadic

#1F445B #5B1F44 #445B1F

tetradic

#1F445B #541F5B #5B361F #265B1F

square

#1F445B #541F5B #5B361F #265B1F

split-complementary

#1F445B #5B1F26 #5B541F

monochromatic

#081117 #0F222D #1F445B #2F6689 #3E88B6

Accessibility & contrast

On white

10.31

#1F445B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1F445B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F445B

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F445B	#FFFFFF	#000000	##FFFFFF
##1F445B	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39445C

Deuteranopia (green-blind)

#313E5B

Tritanopia (blue-blind)

#004A4C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f445b;
/* rgb */ color: rgb(31, 68, 91);
/* oklch */ color: oklch(37.0% 0.058 238.4);

Tailwind

colors: {
  custom: {
    50: '#617789',
    500: '#1f445b',
    950: '#000000',
  },
}

SCSS

$custom: #1f445b;
$custom-light: #617789;
$custom-dark: #000000;

JSON

{
  "hex": "#1f445b",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 91
  },
  "hsl": {
    "h": 203,
    "s": 49.18,
    "l": 23.922
  },
  "oklch": {
    "l": 0.37041,
    "c": 0.058,
    "h": 238.4
  },
  "luminance": 0.05181
}

Semantic roles & 50–950 ramp

primary

#1F445B

secondary

#906246

accent

#844FD9

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080B

muted

#7A7B7C

Preview Lab

Preview with #1F445B

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

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