#1F2497#1F2497

#1F2497 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.2% C 0.181 H 270.7°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#1F2497
RGB	rgb(31, 36, 151)
HSL	hsl(238, 66%, 36%)
HSV	hsv(238, 79%, 59%)
CMYK	cmyk(79.5%, 76.2%, 0%, 40.8%)
CIE-LAB	lab(22.95, 39.46, -62.47)
CIE-LCH	lch(22.95, 73.89, 302.28°)
OKLab	oklab(35.25% 0.0021 -0.1809)
OKLCH	oklch(35.25% 0.181 270.7)
XYZ	xyz(6.7800, 3.7867, 29.6457)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2497 #97921F

analogous

#1F6097 #1F2497 #561F97

triadic

#1F2497 #971F24 #24971F

tetradic

#1F2497 #971F60 #97921F #1F9756

square

#1F2497 #971F60 #97921F #1F9756

split-complementary

#1F2497 #97561F #60971F

monochromatic

#0A0C31 #151864 #1F2497 #2930CA #545ADC

Accessibility & contrast

On white

11.95

#1F2497 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1F2497 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2497

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2497	#FFFFFF	#000000	##FFFFFF
##1F2497	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9A

Deuteranopia (green-blind)

#003195

Tritanopia (blue-blind)

#00465C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2497;
/* rgb */ color: rgb(31, 36, 151);
/* oklch */ color: oklch(35.2% 0.181 270.7);

Tailwind

colors: {
  custom: {
    50: '#7160b7',
    500: '#1f2497',
    950: '#000000',
  },
}

SCSS

$custom: #1f2497;
$custom-light: #7160b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2497",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 151
  },
  "hsl": {
    "h": 237.5,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35246,
    "c": 0.18091,
    "h": 270.7
  },
  "luminance": 0.03787
}

Semantic roles & 50–950 ramp

primary

#1F2497

secondary

#BFBB52

accent

#E23FE9

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1F2497

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

Preview Lab → · Contrast checker → · Palette generator →