#1F286C#1F286C

#1F286C is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.5% C 0.118 H 272.0°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#1F286C
RGB	rgb(31, 40, 108)
HSL	hsl(233, 55%, 27%)
HSV	hsv(233, 71%, 42%)
CMYK	cmyk(71.3%, 63%, 0%, 57.6%)
CIE-LAB	lab(19.60, 20.89, -40.82)
CIE-LCH	lch(19.60, 45.85, 297.10°)
OKLab	oklab(31.51% 0.0042 -0.1176)
OKLCH	oklch(31.51% 0.118 272)
XYZ	xyz(4.0297, 2.8912, 14.5301)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F286C #6C631F

analogous

#1F4F6C #1F286C #3D1F6C

triadic

#1F286C #6C1F28 #286C1F

tetradic

#1F286C #6C1F4F #6C631F #1F6C3D

square

#1F286C #6C1F4F #6C631F #1F6C3D

split-complementary

#1F286C #6C3D1F #4F6C1F

monochromatic

#070918 #11163C #1F286C #2D3A9C #3E4EC8

Accessibility & contrast

On white

13.30

#1F286C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1F286C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F286C

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F286C	#FFFFFF	#000000	##FFFFFF
##1F286C	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336E

Deuteranopia (green-blind)

#002C6B

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f286c;
/* rgb */ color: rgb(31, 40, 108);
/* oklch */ color: oklch(31.5% 0.118 272.0);

Tailwind

colors: {
  custom: {
    50: '#666197',
    500: '#1f286c',
    950: '#000000',
  },
}

SCSS

$custom: #1f286c;
$custom-light: #666197;
$custom-dark: #000000;

JSON

{
  "hex": "#1f286c",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 108
  },
  "hsl": {
    "h": 232.987,
    "s": 55.396,
    "l": 27.255
  },
  "oklch": {
    "l": 0.31514,
    "c": 0.11772,
    "h": 272
  },
  "luminance": 0.02892
}

Semantic roles & 50–950 ramp

primary

#1F286C

secondary

#A09647

accent

#CD49DF

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1F286C

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

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