#1F435B#1F435B

#1F435B is a dark, muted cyan. Relative luminance 0.051; OKLCH L 36.8% C 0.059 H 240.2°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#1F435B
RGB	rgb(31, 67, 91)
HSL	hsl(204, 49%, 24%)
HSV	hsv(204, 66%, 36%)
CMYK	cmyk(65.9%, 26.4%, 0%, 64.3%)
CIE-LAB	lab(26.91, -4.60, -18.14)
CIE-LCH	lch(26.91, 18.71, 255.77°)
OKLab	oklab(36.78% -0.0292 -0.0509)
OKLCH	oklch(36.78% 0.059 240.2)
XYZ	xyz(4.4598, 5.0605, 10.6372)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F435B #5B371F

analogous

#1F5B55 #1F435B #1F255B

triadic

#1F435B #5B1F43 #435B1F

tetradic

#1F435B #551F5B #5B371F #255B1F

square

#1F435B #551F5B #5B371F #255B1F

split-complementary

#1F435B #5B1F25 #5B551F

monochromatic

#081117 #0F212D #1F435B #2F6589 #3E86B6

Accessibility & contrast

On white

10.44

#1F435B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1F435B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F435B

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F435B	#FFFFFF	#000000	##FFFFFF
##1F435B	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38435C

Deuteranopia (green-blind)

#303D5B

Tritanopia (blue-blind)

#00494B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f435b;
/* rgb */ color: rgb(31, 67, 91);
/* oklch */ color: oklch(36.8% 0.059 240.2);

Tailwind

colors: {
  custom: {
    50: '#617789',
    500: '#1f435b',
    950: '#000000',
  },
}

SCSS

$custom: #1f435b;
$custom-light: #617789;
$custom-dark: #000000;

JSON

{
  "hex": "#1f435b",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 91
  },
  "hsl": {
    "h": 204,
    "s": 49.18,
    "l": 23.922
  },
  "oklch": {
    "l": 0.36775,
    "c": 0.05866,
    "h": 240.2
  },
  "luminance": 0.05061
}

Semantic roles & 50–950 ramp

primary

#1F435B

secondary

#906446

accent

#864FD9

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080B

muted

#7A7B7C

Preview Lab

Preview with #1F435B

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

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