#1F406D#1F406D

#1F406D is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 37.1% C 0.087 H 256.8°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#1F406D
RGB	rgb(31, 64, 109)
HSL	hsl(215, 56%, 27%)
HSV	hsv(215, 72%, 43%)
CMYK	cmyk(71.6%, 41.3%, 0%, 57.3%)
CIE-LAB	lab(26.91, 4.34, -29.70)
CIE-LCH	lch(26.91, 30.02, 278.32°)
OKLab	oklab(37.1% -0.0199 -0.0846)
OKLCH	oklch(37.1% 0.087 256.8)
XYZ	xyz(5.1578, 5.0617, 15.1702)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F406D #6D4C1F

analogous

#1F676D #1F406D #251F6D

triadic

#1F406D #6D1F40 #406D1F

tetradic

#1F406D #6D1F67 #6D4C1F #1F6D25

square

#1F406D #6D1F67 #6D4C1F #1F6D25

split-complementary

#1F406D #6D251F #676D1F

monochromatic

#070E18 #11243D #1F406D #2D5C9D #3E79C8

Accessibility & contrast

On white

10.44

#1F406D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1F406D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F406D

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F406D	#FFFFFF	#000000	##FFFFFF
##1F406D	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)

#2C446F

Deuteranopia (green-blind)

#203C6C

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f406d;
/* rgb */ color: rgb(31, 64, 109);
/* oklch */ color: oklch(37.1% 0.087 256.8);

Tailwind

colors: {
  custom: {
    50: '#657497',
    500: '#1f406d',
    950: '#000000',
  },
}

SCSS

$custom: #1f406d;
$custom-light: #657497;
$custom-dark: #000000;

JSON

{
  "hex": "#1f406d",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 109
  },
  "hsl": {
    "h": 214.615,
    "s": 55.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.371,
    "c": 0.08689,
    "h": 256.8
  },
  "luminance": 0.05062
}

Semantic roles & 50–950 ramp

primary

#1F406D

secondary

#A17B47

accent

#9F49DF

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1F406D

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

Preview Lab → · Contrast checker → · Palette generator →