#1F2C8E#1F2C8E

#1F2C8E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.6% C 0.161 H 269.8°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C8E
RGB	rgb(31, 44, 142)
HSL	hsl(233, 64%, 34%)
HSV	hsv(233, 78%, 56%)
CMYK	cmyk(78.2%, 69%, 0%, 44.3%)
CIE-LAB	lab(23.82, 31.21, -55.48)
CIE-LCH	lch(23.82, 63.65, 299.36°)
OKLab	oklab(35.59% -0.0006 -0.1606)
OKLCH	oklch(35.59% 0.161 269.8)
XYZ	xyz(6.3466, 4.0450, 26.0322)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C8E #8E811F

analogous

#1F648E #1F2C8E #4A1F8E

triadic

#1F2C8E #8E1F2C #2C8E1F

tetradic

#1F2C8E #8E1F64 #8E811F #1F8E4A

square

#1F2C8E #8E1F64 #8E811F #1F8E4A

split-complementary

#1F2C8E #8E4A1F #648E1F

monochromatic

#090D2A #141C5C #1F2C8E #2A3CC0 #4F5FD9

Accessibility & contrast

On white

11.61

#1F2C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1F2C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C8E

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C8E	#FFFFFF	#000000	##FFFFFF
##1F2C8E	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E91

Deuteranopia (green-blind)

#00338C

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f2c8e;
/* rgb */ color: rgb(31, 44, 142);
/* oklch */ color: oklch(35.6% 0.161 269.8);

Tailwind

colors: {
  custom: {
    50: '#6e65b0',
    500: '#1f2c8e',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c8e;
$custom-light: #6e65b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c8e",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 142
  },
  "hsl": {
    "h": 232.973,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.35586,
    "c": 0.16056,
    "h": 269.8
  },
  "luminance": 0.04046
}

Semantic roles & 50–950 ramp

primary

#1F2C8E

secondary

#BBAF4D

accent

#D441E7

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1F2C8E

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

Preview Lab → · Contrast checker → · Palette generator →