#1F435A#1F435A

#1F435A is a dark, muted cyan. Relative luminance 0.050; OKLCH L 36.7% C 0.057 H 239.0°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#1F435A
RGB	rgb(31, 67, 90)
HSL	hsl(203, 49%, 24%)
HSV	hsv(203, 66%, 35%)
CMYK	cmyk(65.6%, 25.6%, 0%, 64.7%)
CIE-LAB	lab(26.86, -4.97, -17.56)
CIE-LCH	lch(26.86, 18.25, 254.20°)
OKLab	oklab(36.72% -0.0296 -0.0492)
OKLCH	oklch(36.72% 0.057 239)
XYZ	xyz(4.4170, 5.0434, 10.4116)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F435A #5A361F

analogous

#1F5A53 #1F435A #1F255A

triadic

#1F435A #5A1F43 #435A1F

tetradic

#1F435A #531F5A #5A361F #255A1F

square

#1F435A #531F5A #5A361F #255A1F

split-complementary

#1F435A #5A1F25 #5A531F

monochromatic

#081117 #0F212C #1F435A #2F6588 #3E87B5

Accessibility & contrast

On white

10.45

#1F435A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1F435A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F435A

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F435A	#FFFFFF	#000000	##FFFFFF
##1F435A	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38435B

Deuteranopia (green-blind)

#303D5A

Tritanopia (blue-blind)

#00494B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1f435a;
/* rgb */ color: rgb(31, 67, 90);
/* oklch */ color: oklch(36.7% 0.057 239.0);

Tailwind

colors: {
  custom: {
    50: '#617788',
    500: '#1f435a',
    950: '#000000',
  },
}

SCSS

$custom: #1f435a;
$custom-light: #617788;
$custom-dark: #000000;

JSON

{
  "hex": "#1f435a",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 90
  },
  "hsl": {
    "h": 203.39,
    "s": 48.76,
    "l": 23.725
  },
  "oklch": {
    "l": 0.3672,
    "c": 0.05744,
    "h": 239
  },
  "luminance": 0.05044
}

Semantic roles & 50–950 ramp

primary

#1F435A

secondary

#8F6246

accent

#854FD8

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1F435A

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

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