#1F4E8E#1F4E8E

#1F4E8E is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.8% C 0.118 H 257.1°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX#1F4E8E
RGBrgb(31, 78, 142)
HSLhsl(215, 64%, 34%)
HSVhsv(215, 78%, 56%)
CMYKcmyk(78.2%, 45.1%, 0%, 44.3%)
CIE-LABlab(33.33, 8.02, -40.03)
CIE-LCHlch(33.33, 40.83, 281.33°)
OKLaboklab(42.75% -0.0262 -0.1147)
OKLCHoklch(42.75% 0.118 257.1)
XYZxyz(8.1702, 7.6921, 26.6401)
Luminance0.0769 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1F4E8E #8E5F1F
analogous
#1F868E #1F4E8E #281F8E
triadic
#1F4E8E #8E1F4E #4E8E1F
tetradic
#1F4E8E #8E1F86 #8E5F1F #1F8E28
square
#1F4E8E #8E1F86 #8E5F1F #1F8E28
split-complementary
#1F4E8E #8E281F #868E1F
monochromatic
#09172A #14325C #1F4E8E #2A6AC0 #4F89D9

Accessibility & contrast

On white

8.27
#1F4E8E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.54
#1F4E8E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E8E
8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1F4E8E#FFFFFF#000000##FFFFFF
##1F4E8E1.008.272.548.27
#FFFFFF8.271.0021.001.00
#0000002.5421.001.0021.00
##FFFFFF8.271.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2E5490
Deuteranopia (green-blind)
#184A8D
Tritanopia (blue-blind)
#005D67
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #1f4e8e;
/* rgb */ color: rgb(31, 78, 142);
/* oklch */ color: oklch(42.8% 0.118 257.1);
Tailwind
colors: {
  custom: {
    50: '#6c7faf',
    500: '#1f4e8e',
    950: '#000000',
  },
}
SCSS
$custom: #1f4e8e;
$custom-light: #6c7faf;
$custom-dark: #000000;
JSON
{
  "hex": "#1f4e8e",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 142
  },
  "hsl": {
    "h": 214.595,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42754,
    "c": 0.11763,
    "h": 257.1
  },
  "luminance": 0.07693
}

Semantic roles & 50–950 ramp

primary
#1F4E8E
secondary
#BB8D4D
accent
#A141E7
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#080A10
muted
#7A7C7F

Preview Lab

Preview with #1F4E8E

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

Preview Lab → · Contrast checker → · Palette generator →

#1F4E8E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva