#1F405D#1F405D

#1F405D is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.1% C 0.064 H 247.2°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#1F405D
RGB	rgb(31, 64, 93)
HSL	hsl(208, 50%, 24%)
HSV	hsv(208, 67%, 36%)
CMYK	cmyk(66.7%, 31.2%, 0%, 63.5%)
CIE-LAB	lab(26.00, -1.88, -20.84)
CIE-LCH	lch(26.00, 20.92, 264.84°)
OKLab	oklab(36.1% -0.0247 -0.0587)
OKLCH	oklch(36.1% 0.064 247.2)
XYZ	xyz(4.3735, 4.7480, 11.0398)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F405D #5D3C1F

analogous

#1F5D5B #1F405D #1F215D

triadic

#1F405D #5D1F40 #405D1F

tetradic

#1F405D #5B1F5D #5D3C1F #215D1F

square

#1F405D #5B1F5D #5D3C1F #215D1F

split-complementary

#1F405D #5D1F21 #5D5B1F

monochromatic

#081017 #10202F #1F405D #2E608B #3E7FB9

Accessibility & contrast

On white

10.77

#1F405D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1F405D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F405D

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F405D	#FFFFFF	#000000	##FFFFFF
##1F405D	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33415E

Deuteranopia (green-blind)

#2B3B5C

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f405d;
/* rgb */ color: rgb(31, 64, 93);
/* oklch */ color: oklch(36.1% 0.064 247.2);

Tailwind

colors: {
  custom: {
    50: '#61748b',
    500: '#1f405d',
    950: '#000000',
  },
}

SCSS

$custom: #1f405d;
$custom-light: #61748b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f405d",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 93
  },
  "hsl": {
    "h": 208.065,
    "s": 50,
    "l": 24.314
  },
  "oklch": {
    "l": 0.36095,
    "c": 0.06373,
    "h": 247.2
  },
  "luminance": 0.04748
}

Semantic roles & 50–950 ramp

primary

#1F405D

secondary

#926946

accent

#8F4EDA

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080C

muted

#7A7B7D

Preview Lab

Preview with #1F405D

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

Preview Lab → · Contrast checker → · Palette generator →