#1F4E77#1F4E77

#1F4E77 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.2% C 0.086 H 248.0°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E77
RGB	rgb(31, 78, 119)
HSL	hsl(208, 59%, 29%)
HSV	hsv(208, 74%, 47%)
CMYK	cmyk(73.9%, 34.5%, 0%, 53.3%)
CIE-LAB	lab(31.97, -1.06, -28.00)
CIE-LCH	lch(31.97, 28.02, 267.83°)
OKLab	oklab(41.25% -0.0321 -0.0794)
OKLCH	oklch(41.25% 0.086 248)
XYZ	xyz(6.6180, 7.0713, 18.4653)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E77 #77481F

analogous

#1F7774 #1F4E77 #1F2277

triadic

#1F4E77 #771F4E #4E771F

tetradic

#1F4E77 #741F77 #77481F #22771F

square

#1F4E77 #741F77 #77481F #22771F

split-complementary

#1F4E77 #771F22 #77741F

monochromatic

#061018 #122E46 #1F4E77 #2C6EA8 #438DCE

Accessibility & contrast

On white

8.70

#1F4E77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1F4E77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E77

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E77	#FFFFFF	#000000	##FFFFFF
##1F4E77	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5079

Deuteranopia (green-blind)

#2F4776

Tritanopia (blue-blind)

#00585D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f4e77;
/* rgb */ color: rgb(31, 78, 119);
/* oklch */ color: oklch(41.2% 0.086 248.0);

Tailwind

colors: {
  custom: {
    50: '#677f9e',
    500: '#1f4e77',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e77;
$custom-light: #677f9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e77",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 119
  },
  "hsl": {
    "h": 207.955,
    "s": 58.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.41246,
    "c": 0.08566,
    "h": 248
  },
  "luminance": 0.07072
}

Semantic roles & 50–950 ramp

primary

#1F4E77

secondary

#AB7647

accent

#8F46E2

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #1F4E77

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

Preview Lab → · Contrast checker → · Palette generator →