#1F406A#1F406A

#1F406A is a dark, moderate cyan. Relative luminance 0.050; OKLCH L 36.9% C 0.082 H 255.5°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F406A
RGB	rgb(31, 64, 106)
HSL	hsl(214, 55%, 27%)
HSV	hsv(214, 71%, 42%)
CMYK	cmyk(70.8%, 39.6%, 0%, 58.4%)
CIE-LAB	lab(26.73, 3.16, -28.07)
CIE-LCH	lch(26.73, 28.25, 276.41°)
OKLab	oklab(36.9% -0.0207 -0.0798)
OKLCH	oklch(36.9% 0.082 255.5)
XYZ	xyz(4.9990, 4.9982, 14.3342)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F406A #6A491F

analogous

#1F666A #1F406A #241F6A

triadic

#1F406A #6A1F40 #406A1F

tetradic

#1F406A #6A1F66 #6A491F #1F6A24

square

#1F406A #6A1F66 #6A491F #1F6A24

split-complementary

#1F406A #6A241F #666A1F

monochromatic

#070E18 #11233B #1F406A #2D5D99 #3D79C6

Accessibility & contrast

On white

10.50

#1F406A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1F406A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F406A

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F406A	#FFFFFF	#000000	##FFFFFF
##1F406A	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D436C

Deuteranopia (green-blind)

#223C69

Tritanopia (blue-blind)

#004A50

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1f406a;
/* rgb */ color: rgb(31, 64, 106);
/* oklch */ color: oklch(36.9% 0.082 255.5);

Tailwind

colors: {
  custom: {
    50: '#647495',
    500: '#1f406a',
    950: '#000000',
  },
}

SCSS

$custom: #1f406a;
$custom-light: #647495;
$custom-dark: #000000;

JSON

{
  "hex": "#1f406a",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 106
  },
  "hsl": {
    "h": 213.6,
    "s": 54.745,
    "l": 26.863
  },
  "oklch": {
    "l": 0.36901,
    "c": 0.08245,
    "h": 255.5
  },
  "luminance": 0.04999
}

Semantic roles & 50–950 ramp

primary

#1F406A

secondary

#9E7847

accent

#9D4ADE

background

#F6F7F9

surface

#EBEDF1

border

#C6C8CB

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1F406A

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

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