#1F2C87#1F2C87

#1F2C87 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.9% C 0.151 H 270.0°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C87
RGB	rgb(31, 44, 135)
HSL	hsl(233, 63%, 33%)
HSV	hsv(233, 77%, 53%)
CMYK	cmyk(77%, 67.4%, 0%, 47.1%)
CIE-LAB	lab(23.14, 28.57, -52.23)
CIE-LCH	lch(23.14, 59.53, 298.67°)
OKLab	oklab(34.88% 0 -0.1511)
OKLCH	oklch(34.88% 0.151 270)
XYZ	xyz(5.8374, 3.8413, 23.3508)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C87 #877A1F

analogous

#1F6087 #1F2C87 #461F87

triadic

#1F2C87 #871F2C #2C871F

tetradic

#1F2C87 #871F60 #877A1F #1F8746

square

#1F2C87 #871F60 #877A1F #1F8746

split-complementary

#1F2C87 #87461F #60871F

monochromatic

#080C23 #141C55 #1F2C87 #2A3CB9 #4B5CD6

Accessibility & contrast

On white

11.88

#1F2C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1F2C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C87

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C87	#FFFFFF	#000000	##FFFFFF
##1F2C87	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8A

Deuteranopia (green-blind)

#003285

Tritanopia (blue-blind)

#004455

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2c87;
/* rgb */ color: rgb(31, 44, 135);
/* oklch */ color: oklch(34.9% 0.151 270.0);

Tailwind

colors: {
  custom: {
    50: '#6c65ab',
    500: '#1f2c87',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c87;
$custom-light: #6c65ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c87",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 135
  },
  "hsl": {
    "h": 232.5,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.34883,
    "c": 0.15107,
    "h": 270
  },
  "luminance": 0.03842
}

Semantic roles & 50–950 ramp

primary

#1F2C87

secondary

#B8AA4A

accent

#D142E6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1F2C87

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

Preview Lab → · Contrast checker → · Palette generator →