#1F3A93#1F3A93

#1F3A93 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.150 H 266.4°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#1F3A93
RGB	rgb(31, 58, 147)
HSL	hsl(226, 65%, 35%)
HSV	hsv(226, 79%, 58%)
CMYK	cmyk(78.9%, 60.5%, 0%, 42.4%)
CIE-LAB	lab(27.91, 23.69, -51.87)
CIE-LCH	lch(27.91, 57.02, 294.55°)
OKLab	oklab(38.74% -0.0095 -0.1499)
OKLCH	oklch(38.74% 0.15 266.4)
XYZ	xyz(7.3427, 5.4232, 28.2579)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3A93 #93781F

analogous

#1F7493 #1F3A93 #3E1F93

triadic

#1F3A93 #931F3A #3A931F

tetradic

#1F3A93 #931F74 #93781F #1F933E

square

#1F3A93 #931F74 #93781F #1F933E

split-complementary

#1F3A93 #933E1F #74931F

monochromatic

#0A122E #142660 #1F3A93 #2A4EC6 #5272DA

Accessibility & contrast

On white

10.07

#1F3A93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1F3A93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3A93

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3A93	#FFFFFF	#000000	##FFFFFF
##1F3A93	1.00	10.07	2.08	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004796

Deuteranopia (green-blind)

#003D91

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f3a93;
/* rgb */ color: rgb(31, 58, 147);
/* oklch */ color: oklch(38.7% 0.150 266.4);

Tailwind

colors: {
  custom: {
    50: '#6e6fb3',
    500: '#1f3a93',
    950: '#000000',
  },
}

SCSS

$custom: #1f3a93;
$custom-light: #6e6fb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3a93",
  "rgb": {
    "r": 31,
    "g": 58,
    "b": 147
  },
  "hsl": {
    "h": 226.034,
    "s": 65.169,
    "l": 34.902
  },
  "oklch": {
    "l": 0.38741,
    "c": 0.15016,
    "h": 266.4
  },
  "luminance": 0.05424
}

Semantic roles & 50–950 ramp

primary

#1F3A93

secondary

#BEA450

accent

#C140E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1F3A93

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

Preview Lab → · Contrast checker → · Palette generator →