#1F436C#1F436C

#1F436C is a dark, moderate cyan. Relative luminance 0.054; OKLCH L 37.8% C 0.082 H 253.3°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F436C
RGB	rgb(31, 67, 108)
HSL	hsl(212, 55%, 27%)
HSV	hsv(212, 71%, 42%)
CMYK	cmyk(71.3%, 38%, 0%, 57.6%)
CIE-LAB	lab(27.81, 1.91, -27.63)
CIE-LCH	lch(27.81, 27.70, 273.96°)
OKLab	oklab(37.78% -0.0235 -0.0785)
OKLCH	oklch(37.78% 0.082 253.3)
XYZ	xyz(5.2780, 5.3878, 14.9462)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F436C #6C481F

analogous

#1F6A6C #1F436C #211F6C

triadic

#1F436C #6C1F43 #436C1F

tetradic

#1F436C #6C1F6A #6C481F #1F6C21

square

#1F436C #6C1F6A #6C481F #1F6C21

split-complementary

#1F436C #6C211F #6A6C1F

monochromatic

#070F18 #11263C #1F436C #2D609C #3E7EC8

Accessibility & contrast

On white

10.11

#1F436C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1F436C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F436C

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F436C	#FFFFFF	#000000	##FFFFFF
##1F436C	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31466E

Deuteranopia (green-blind)

#263E6B

Tritanopia (blue-blind)

#004D52

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f436c;
/* rgb */ color: rgb(31, 67, 108);
/* oklch */ color: oklch(37.8% 0.082 253.3);

Tailwind

colors: {
  custom: {
    50: '#647696',
    500: '#1f436c',
    950: '#000000',
  },
}

SCSS

$custom: #1f436c;
$custom-light: #647696;
$custom-dark: #000000;

JSON

{
  "hex": "#1f436c",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 108
  },
  "hsl": {
    "h": 211.948,
    "s": 55.396,
    "l": 27.255
  },
  "oklch": {
    "l": 0.37784,
    "c": 0.08192,
    "h": 253.3
  },
  "luminance": 0.05388
}

Semantic roles & 50–950 ramp

primary

#1F436C

secondary

#A07647

accent

#9949DF

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1F436C

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

Preview Lab → · Contrast checker → · Palette generator →