#1F4D75#1F4D75

#1F4D75 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 40.9% C 0.084 H 247.8°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D75
RGB	rgb(31, 77, 117)
HSL	hsl(208, 58%, 29%)
HSV	hsv(208, 74%, 46%)
CMYK	cmyk(73.5%, 34.2%, 0%, 54.1%)
CIE-LAB	lab(31.54, -1.19, -27.43)
CIE-LCH	lch(31.54, 27.45, 267.52°)
OKLab	oklab(40.87% -0.0317 -0.0777)
OKLCH	oklch(40.87% 0.084 247.8)
XYZ	xyz(6.4286, 6.8827, 17.8159)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D75 #75471F

analogous

#1F7572 #1F4D75 #1F2275

triadic

#1F4D75 #751F4D #4D751F

tetradic

#1F4D75 #721F75 #75471F #22751F

square

#1F4D75 #721F75 #75471F #22751F

split-complementary

#1F4D75 #751F22 #75721F

monochromatic

#061018 #122D45 #1F4D75 #2C6DA5 #428CCD

Accessibility & contrast

On white

8.84

#1F4D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1F4D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D75

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D75	#FFFFFF	#000000	##FFFFFF
##1F4D75	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4F77

Deuteranopia (green-blind)

#2F4774

Tritanopia (blue-blind)

#00575B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4d75;
/* rgb */ color: rgb(31, 77, 117);
/* oklch */ color: oklch(40.9% 0.084 247.8);

Tailwind

colors: {
  custom: {
    50: '#667e9d',
    500: '#1f4d75',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d75;
$custom-light: #667e9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d75",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 117
  },
  "hsl": {
    "h": 207.907,
    "s": 58.108,
    "l": 29.02
  },
  "oklch": {
    "l": 0.40872,
    "c": 0.08395,
    "h": 247.8
  },
  "luminance": 0.06883
}

Semantic roles & 50–950 ramp

primary

#1F4D75

secondary

#A97447

accent

#8E46E1

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1F4D75

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

Preview Lab → · Contrast checker → · Palette generator →