#1F2F9D#1F2F9D

#1F2F9D is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.177 H 268.9°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F9D
RGB	rgb(31, 47, 157)
HSL	hsl(232, 67%, 37%)
HSV	hsv(232, 80%, 62%)
CMYK	cmyk(80.3%, 70.1%, 0%, 38.4%)
CIE-LAB	lab(26.03, 34.85, -61.06)
CIE-LCH	lch(26.03, 70.30, 299.71°)
OKLab	oklab(37.65% -0.0035 -0.1768)
OKLCH	oklch(37.65% 0.177 268.9)
XYZ	xyz(7.6653, 4.7578, 32.4061)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F9D #9D8D1F

analogous

#1F6E9D #1F2F9D #4E1F9D

triadic

#1F2F9D #9D1F2F #2F9D1F

tetradic

#1F2F9D #9D1F6E #9D8D1F #1F9D4E

square

#1F2F9D #9D1F6E #9D8D1F #1F9D4E

split-complementary

#1F2F9D #9D4E1F #6E9D1F

monochromatic

#0B1037 #15206A #1F2F9D #293ED0 #5869DE

Accessibility & contrast

On white

10.76

#1F2F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1F2F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F9D

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F9D	#FFFFFF	#000000	##FFFFFF
##1F2F9D	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A0

Deuteranopia (green-blind)

#00389B

Tritanopia (blue-blind)

#004D62

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f2f9d;
/* rgb */ color: rgb(31, 47, 157);
/* oklch */ color: oklch(37.6% 0.177 268.9);

Tailwind

colors: {
  custom: {
    50: '#7268bb',
    500: '#1f2f9d',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f9d;
$custom-light: #7268bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f9d",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 157
  },
  "hsl": {
    "h": 232.381,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.37645,
    "c": 0.17688,
    "h": 268.9
  },
  "luminance": 0.04759
}

Semantic roles & 50–950 ramp

primary

#1F2F9D

secondary

#C2B456

accent

#D43EEA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1F2F9D

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

Preview Lab → · Contrast checker → · Palette generator →