#1F2CA5#1F2CA5

#1F2CA5 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.0% C 0.190 H 269.1°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#1F2CA5
RGB	rgb(31, 44, 165)
HSL	hsl(234, 68%, 38%)
HSV	hsv(234, 81%, 65%)
CMYK	cmyk(81.2%, 73.3%, 0%, 35.3%)
CIE-LAB	lab(26.18, 39.61, -65.68)
CIE-LCH	lch(26.18, 76.70, 301.09°)
OKLab	oklab(38% -0.0031 -0.1903)
OKLCH	oklch(38% 0.19 269.1)
XYZ	xyz(8.2550, 4.8083, 36.0830)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2CA5 #A5981F

analogous

#1F6FA5 #1F2CA5 #551FA5

triadic

#1F2CA5 #A51F2C #2CA51F

tetradic

#1F2CA5 #A51F6F #A5981F #1FA555

square

#1F2CA5 #A51F6F #A5981F #1FA555

split-complementary

#1F2CA5 #A5551F #6FA51F

monochromatic

#0C113E #151E71 #1F2CA5 #2A3BD7 #5E6AE1

Accessibility & contrast

On white

10.70

#1F2CA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1F2CA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2CA5

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2CA5	#FFFFFF	#000000	##FFFFFF
##1F2CA5	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A9

Deuteranopia (green-blind)

#0037A3

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f2ca5;
/* rgb */ color: rgb(31, 44, 165);
/* oklch */ color: oklch(38.0% 0.190 269.1);

Tailwind

colors: {
  custom: {
    50: '#7466c1',
    500: '#1f2ca5',
    950: '#000000',
  },
}

SCSS

$custom: #1f2ca5;
$custom-light: #7466c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2ca5",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 165
  },
  "hsl": {
    "h": 234.179,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.38,
    "c": 0.19031,
    "h": 269.1
  },
  "luminance": 0.04809
}

Semantic roles & 50–950 ramp

primary

#1F2CA5

secondary

#C5BB5B

accent

#DA3DEB

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #1F2CA5

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

Preview Lab → · Contrast checker → · Palette generator →