#1F406C#1F406C

#1F406C is a dark, moderate cyan. Relative luminance 0.050; OKLCH L 37.0% C 0.085 H 256.3°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F406C
RGB	rgb(31, 64, 108)
HSL	hsl(214, 55%, 27%)
HSV	hsv(214, 71%, 42%)
CMYK	cmyk(71.3%, 40.7%, 0%, 57.6%)
CIE-LAB	lab(26.85, 3.95, -29.16)
CIE-LCH	lch(26.85, 29.42, 277.71°)
OKLab	oklab(37.03% -0.0202 -0.083)
OKLCH	oklch(37.03% 0.085 256.3)
XYZ	xyz(5.1043, 5.0403, 14.8883)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F406C #6C4B1F

analogous

#1F676C #1F406C #251F6C

triadic

#1F406C #6C1F40 #406C1F

tetradic

#1F406C #6C1F67 #6C4B1F #1F6C25

square

#1F406C #6C1F67 #6C4B1F #1F6C25

split-complementary

#1F406C #6C251F #676C1F

monochromatic

#070E18 #11243C #1F406C #2D5C9C #3E79C8

Accessibility & contrast

On white

10.46

#1F406C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1F406C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F406C

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F406C	#FFFFFF	#000000	##FFFFFF
##1F406C	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C436E

Deuteranopia (green-blind)

#213C6B

Tritanopia (blue-blind)

#004A50

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1f406c;
/* rgb */ color: rgb(31, 64, 108);
/* oklch */ color: oklch(37.0% 0.085 256.3);

Tailwind

colors: {
  custom: {
    50: '#647496',
    500: '#1f406c',
    950: '#000000',
  },
}

SCSS

$custom: #1f406c;
$custom-light: #647496;
$custom-dark: #000000;

JSON

{
  "hex": "#1f406c",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 108
  },
  "hsl": {
    "h": 214.286,
    "s": 55.396,
    "l": 27.255
  },
  "oklch": {
    "l": 0.37033,
    "c": 0.0854,
    "h": 256.3
  },
  "luminance": 0.05041
}

Semantic roles & 50–950 ramp

primary

#1F406C

secondary

#A07A47

accent

#9F49DF

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1F406C

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

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