#1F4F93#1F4F93

#1F4F93 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.3% C 0.123 H 257.8°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F93
RGB	rgb(31, 79, 147)
HSL	hsl(215, 65%, 35%)
HSV	hsv(215, 79%, 58%)
CMYK	cmyk(78.9%, 46.3%, 0%, 42.4%)
CIE-LAB	lab(33.96, 9.35, -42.08)
CIE-LCH	lch(33.96, 43.10, 282.53°)
OKLab	oklab(43.34% -0.0261 -0.1207)
OKLCH	oklch(43.34% 0.123 257.8)
XYZ	xyz(8.6256, 7.9889, 28.6855)
Luminance	0.0799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F93 #93631F

analogous

#1F8993 #1F4F93 #291F93

triadic

#1F4F93 #931F4F #4F931F

tetradic

#1F4F93 #931F89 #93631F #1F9329

square

#1F4F93 #931F89 #93631F #1F9329

split-complementary

#1F4F93 #93291F #89931F

monochromatic

#0A192E #143460 #1F4F93 #2A6AC6 #528ADA

Accessibility & contrast

On white

8.08

#1F4F93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1F4F93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F93

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F93	#FFFFFF	#000000	##FFFFFF
##1F4F93	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5696

Deuteranopia (green-blind)

#114B92

Tritanopia (blue-blind)

#005F6A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1f4f93;
/* rgb */ color: rgb(31, 79, 147);
/* oklch */ color: oklch(43.3% 0.123 257.8);

Tailwind

colors: {
  custom: {
    50: '#6d7fb3',
    500: '#1f4f93',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f93;
$custom-light: #6d7fb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f93",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 147
  },
  "hsl": {
    "h": 215.172,
    "s": 65.169,
    "l": 34.902
  },
  "oklch": {
    "l": 0.43343,
    "c": 0.12345,
    "h": 257.8
  },
  "luminance": 0.0799
}

Semantic roles & 50–950 ramp

primary

#1F4F93

secondary

#BE9050

accent

#A240E8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F4F93

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

Preview Lab → · Contrast checker → · Palette generator →