#1F4E78#1F4E78

#1F4E78 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.3% C 0.087 H 248.5°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E78
RGB	rgb(31, 78, 120)
HSL	hsl(208, 59%, 30%)
HSV	hsv(208, 74%, 47%)
CMYK	cmyk(74.2%, 35%, 0%, 52.9%)
CIE-LAB	lab(32.02, -0.67, -28.54)
CIE-LCH	lch(32.02, 28.54, 268.65°)
OKLab	oklab(41.31% -0.0318 -0.081)
OKLCH	oklch(41.31% 0.087 248.5)
XYZ	xyz(6.6783, 7.0954, 18.7832)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E78 #78491F

analogous

#1F7876 #1F4E78 #1F2178

triadic

#1F4E78 #781F4E #4E781F

tetradic

#1F4E78 #761F78 #78491F #21781F

square

#1F4E78 #761F78 #78491F #21781F

split-complementary

#1F4E78 #781F21 #78761F

monochromatic

#061018 #122E47 #1F4E78 #2C6EA9 #438DCE

Accessibility & contrast

On white

8.68

#1F4E78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#1F4E78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E78

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E78	#FFFFFF	#000000	##FFFFFF
##1F4E78	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B507A

Deuteranopia (green-blind)

#2E4877

Tritanopia (blue-blind)

#00585D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f4e78;
/* rgb */ color: rgb(31, 78, 120);
/* oklch */ color: oklch(41.3% 0.087 248.5);

Tailwind

colors: {
  custom: {
    50: '#677f9f',
    500: '#1f4e78',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e78;
$custom-light: #677f9f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e78",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 120
  },
  "hsl": {
    "h": 208.315,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.41306,
    "c": 0.087,
    "h": 248.5
  },
  "luminance": 0.07096
}

Semantic roles & 50–950 ramp

primary

#1F4E78

secondary

#AB7747

accent

#9046E2

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #1F4E78

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

Preview Lab → · Contrast checker → · Palette generator →