#1F2C7B#1F2C7B

#1F2C7B is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.7% C 0.134 H 270.2°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C7B
RGB	rgb(31, 44, 123)
HSL	hsl(232, 60%, 30%)
HSV	hsv(232, 75%, 48%)
CMYK	cmyk(74.8%, 64.2%, 0%, 51.8%)
CIE-LAB	lab(22.02, 23.94, -46.49)
CIE-LCH	lch(22.02, 52.30, 297.25°)
OKLab	oklab(33.72% 0.0006 -0.1343)
OKLCH	oklch(33.72% 0.134 270.2)
XYZ	xyz(5.0397, 3.5222, 19.1493)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C7B #7B6E1F

analogous

#1F5A7B #1F2C7B #401F7B

triadic

#1F2C7B #7B1F2C #2C7B1F

tetradic

#1F2C7B #7B1F5A #7B6E1F #1F7B40

square

#1F2C7B #7B1F5A #7B6E1F #1F7B40

split-complementary

#1F2C7B #7B401F #5A7B1F

monochromatic

#060919 #131B4A #1F2C7B #2B3DAC #4458D0

Accessibility & contrast

On white

12.32

#1F2C7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F2C7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C7B

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C7B	#FFFFFF	#000000	##FFFFFF
##1F2C7B	1.00	12.32	1.70	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397E

Deuteranopia (green-blind)

#003179

Tritanopia (blue-blind)

#00404F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2c7b;
/* rgb */ color: rgb(31, 44, 123);
/* oklch */ color: oklch(33.7% 0.134 270.2);

Tailwind

colors: {
  custom: {
    50: '#6965a2',
    500: '#1f2c7b',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c7b;
$custom-light: #6965a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c7b",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 123
  },
  "hsl": {
    "h": 231.522,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.3372,
    "c": 0.13427,
    "h": 270.2
  },
  "luminance": 0.03523
}

Semantic roles & 50–950 ramp

primary

#1F2C7B

secondary

#AEA048

accent

#CD45E3

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1F2C7B

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

Preview Lab → · Contrast checker → · Palette generator →