#1F4E93#1F4E93

#1F4E93 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.1% C 0.125 H 258.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E93
RGB	rgb(31, 78, 147)
HSL	hsl(216, 65%, 35%)
HSV	hsv(216, 79%, 58%)
CMYK	cmyk(78.9%, 46.9%, 0%, 42.4%)
CIE-LAB	lab(33.66, 10.02, -42.56)
CIE-LCH	lch(33.66, 43.72, 283.25°)
OKLab	oklab(43.11% -0.0252 -0.1221)
OKLCH	oklch(43.11% 0.125 258.3)
XYZ	xyz(8.5540, 7.8457, 28.6616)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E93 #93641F

analogous

#1F8893 #1F4E93 #2A1F93

triadic

#1F4E93 #931F4E #4E931F

tetradic

#1F4E93 #931F88 #93641F #1F932A

square

#1F4E93 #931F88 #93641F #1F932A

split-complementary

#1F4E93 #932A1F #88931F

monochromatic

#0A182E #143360 #1F4E93 #2A69C6 #5289DA

Accessibility & contrast

On white

8.17

#1F4E93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1F4E93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E93

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E93	#FFFFFF	#000000	##FFFFFF
##1F4E93	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295596

Deuteranopia (green-blind)

#0D4A92

Tritanopia (blue-blind)

#005E69

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f4e93;
/* rgb */ color: rgb(31, 78, 147);
/* oklch */ color: oklch(43.1% 0.125 258.3);

Tailwind

colors: {
  custom: {
    50: '#6d7fb3',
    500: '#1f4e93',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e93;
$custom-light: #6d7fb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e93",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 147
  },
  "hsl": {
    "h": 215.69,
    "s": 65.169,
    "l": 34.902
  },
  "oklch": {
    "l": 0.43111,
    "c": 0.12468,
    "h": 258.3
  },
  "luminance": 0.07847
}

Semantic roles & 50–950 ramp

primary

#1F4E93

secondary

#BE9150

accent

#A440E8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F4E93

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

Preview Lab → · Contrast checker → · Palette generator →