#1F2277#1F2277

#1F2277 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.141 H 273.3°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#1F2277
RGB	rgb(31, 34, 119)
HSL	hsl(238, 59%, 29%)
HSV	hsv(238, 74%, 47%)
CMYK	cmyk(73.9%, 71.4%, 0%, 53.3%)
CIE-LAB	lab(19.08, 29.20, -48.76)
CIE-LCH	lch(19.08, 56.83, 300.91°)
OKLab	oklab(31.46% 0.008 -0.141)
OKLCH	oklch(31.46% 0.141 273.3)
XYZ	xyz(4.4658, 2.7668, 17.7479)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2277 #77741F

analogous

#1F4E77 #1F2277 #481F77

triadic

#1F2277 #771F22 #22771F

tetradic

#1F2277 #771F4E #77741F #1F7748

square

#1F2277 #771F4E #77741F #1F7748

split-complementary

#1F2277 #77481F #4E771F

monochromatic

#060718 #121446 #1F2277 #2C30A8 #4347CE

Accessibility & contrast

On white

13.52

#1F2277 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1F2277 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2277

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2277	#FFFFFF	#000000	##FFFFFF
##1F2277	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327A

Deuteranopia (green-blind)

#002A75

Tritanopia (blue-blind)

#003949

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f2277;
/* rgb */ color: rgb(31, 34, 119);
/* oklch */ color: oklch(31.5% 0.141 273.3);

Tailwind

colors: {
  custom: {
    50: '#695d9f',
    500: '#1f2277',
    950: '#000000',
  },
}

SCSS

$custom: #1f2277;
$custom-light: #695d9f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2277",
  "rgb": {
    "r": 31,
    "g": 34,
    "b": 119
  },
  "hsl": {
    "h": 237.955,
    "s": 58.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31455,
    "c": 0.14119,
    "h": 273.3
  },
  "luminance": 0.02767
}

Semantic roles & 50–950 ramp

primary

#1F2277

secondary

#ABA747

accent

#DD46E2

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #1F2277

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

Preview Lab → · Contrast checker → · Palette generator →