#1F4F79#1F4F79

#1F4F79 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.6% C 0.087 H 248.1°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F79
RGB	rgb(31, 79, 121)
HSL	hsl(208, 59%, 30%)
HSV	hsv(208, 74%, 47%)
CMYK	cmyk(74.4%, 34.7%, 0%, 52.5%)
CIE-LAB	lab(32.40, -0.93, -28.57)
CIE-LCH	lch(32.40, 28.58, 268.13°)
OKLab	oklab(41.62% -0.0326 -0.081)
OKLCH	oklch(41.62% 0.087 248.1)
XYZ	xyz(6.8109, 7.2630, 19.1284)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F79 #79491F

analogous

#1F7976 #1F4F79 #1F2279

triadic

#1F4F79 #791F4F #4F791F

tetradic

#1F4F79 #761F79 #79491F #22791F

square

#1F4F79 #761F79 #79491F #22791F

split-complementary

#1F4F79 #791F22 #79761F

monochromatic

#061018 #132F48 #1F4F79 #2B6FAA #438ECF

Accessibility & contrast

On white

8.56

#1F4F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1F4F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F79

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F79	#FFFFFF	#000000	##FFFFFF
##1F4F79	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C517B

Deuteranopia (green-blind)

#2F4878

Tritanopia (blue-blind)

#00595E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f4f79;
/* rgb */ color: rgb(31, 79, 121);
/* oklch */ color: oklch(41.6% 0.087 248.1);

Tailwind

colors: {
  custom: {
    50: '#6780a0',
    500: '#1f4f79',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f79;
$custom-light: #6780a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f79",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 121
  },
  "hsl": {
    "h": 208,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.41619,
    "c": 0.08734,
    "h": 248.1
  },
  "luminance": 0.07264
}

Semantic roles & 50–950 ramp

primary

#1F4F79

secondary

#AC7747

accent

#8F45E2

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #1F4F79

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

Preview Lab → · Contrast checker → · Palette generator →