#1F2DA0#1F2DA0

#1F2DA0 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.6% C 0.183 H 269.1°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F2DA0
RGB	rgb(31, 45, 160)
HSL	hsl(233, 68%, 37%)
HSV	hsv(233, 81%, 63%)
CMYK	cmyk(80.6%, 71.9%, 0%, 37.3%)
CIE-LAB	lab(25.88, 37.20, -63.14)
CIE-LCH	lch(25.88, 73.29, 300.51°)
OKLab	oklab(37.63% -0.0029 -0.1829)
OKLCH	oklch(37.63% 0.183 269.1)
XYZ	xyz(7.8464, 4.7052, 33.7456)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2DA0 #A0921F

analogous

#1F6EA0 #1F2DA0 #511FA0

triadic

#1F2DA0 #A01F2D #2DA01F

tetradic

#1F2DA0 #A01F6E #A0921F #1FA051

square

#1F2DA0 #A01F6E #A0921F #1FA051

split-complementary

#1F2DA0 #A0511F #6EA01F

monochromatic

#0B1039 #151F6D #1F2DA0 #293BD3 #5A69DF

Accessibility & contrast

On white

10.82

#1F2DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1F2DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2DA0

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2DA0	#FFFFFF	#000000	##FFFFFF
##1F2DA0	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A3

Deuteranopia (green-blind)

#00379E

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f2da0;
/* rgb */ color: rgb(31, 45, 160);
/* oklch */ color: oklch(37.6% 0.183 269.1);

Tailwind

colors: {
  custom: {
    50: '#7366bd',
    500: '#1f2da0',
    950: '#000000',
  },
}

SCSS

$custom: #1f2da0;
$custom-light: #7366bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2da0",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 160
  },
  "hsl": {
    "h": 233.488,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.37625,
    "c": 0.18294,
    "h": 269.1
  },
  "luminance": 0.04706
}

Semantic roles & 50–950 ramp

primary

#1F2DA0

secondary

#C3B758

accent

#D83DEA

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #1F2DA0

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

Preview Lab → · Contrast checker → · Palette generator →