#1F2CA0#1F2CA0

#1F2CA0 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.5% C 0.184 H 269.2°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#1F2CA0
RGB	rgb(31, 44, 160)
HSL	hsl(234, 68%, 37%)
HSV	hsv(234, 81%, 63%)
CMYK	cmyk(80.6%, 72.5%, 0%, 37.3%)
CIE-LAB	lab(25.65, 37.82, -63.51)
CIE-LCH	lch(25.65, 73.92, 300.77°)
OKLab	oklab(37.46% -0.0025 -0.184)
OKLCH	oklch(37.46% 0.184 269.2)
XYZ	xyz(7.8087, 4.6298, 33.7330)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2CA0 #A0931F

analogous

#1F6DA0 #1F2CA0 #521FA0

triadic

#1F2CA0 #A01F2C #2CA01F

tetradic

#1F2CA0 #A01F6D #A0931F #1FA052

square

#1F2CA0 #A01F6D #A0931F #1FA052

split-complementary

#1F2CA0 #A0521F #6DA01F

monochromatic

#0B1039 #151E6D #1F2CA0 #293AD3 #5A68DF

Accessibility & contrast

On white

10.90

#1F2CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1F2CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2CA0

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2CA0	#FFFFFF	#000000	##FFFFFF
##1F2CA0	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A3

Deuteranopia (green-blind)

#00369E

Tritanopia (blue-blind)

#004D63

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f2ca0;
/* rgb */ color: rgb(31, 44, 160);
/* oklch */ color: oklch(37.5% 0.184 269.2);

Tailwind

colors: {
  custom: {
    50: '#7366bd',
    500: '#1f2ca0',
    950: '#000000',
  },
}

SCSS

$custom: #1f2ca0;
$custom-light: #7366bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2ca0",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 160
  },
  "hsl": {
    "h": 233.953,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.37464,
    "c": 0.18401,
    "h": 269.2
  },
  "luminance": 0.04631
}

Semantic roles & 50–950 ramp

primary

#1F2CA0

secondary

#C3B858

accent

#D93DEA

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #1F2CA0

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

Preview Lab → · Contrast checker → · Palette generator →