#1F286A#1F286A

#1F286A is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.3% C 0.115 H 272.1°. Best body text is #FFFFFF at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F286A
RGB	rgb(31, 40, 106)
HSL	hsl(233, 55%, 27%)
HSV	hsv(233, 71%, 42%)
CMYK	cmyk(70.8%, 62.3%, 0%, 58.4%)
CIE-LAB	lab(19.43, 20.10, -39.80)
CIE-LCH	lch(19.43, 44.59, 296.80°)
OKLab	oklab(31.33% 0.0042 -0.1147)
OKLCH	oklch(31.33% 0.115 272.1)
XYZ	xyz(3.9245, 2.8491, 13.9760)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F286A #6A611F

analogous

#1F4E6A #1F286A #3C1F6A

triadic

#1F286A #6A1F28 #286A1F

tetradic

#1F286A #6A1F4E #6A611F #1F6A3C

square

#1F286A #6A1F4E #6A611F #1F6A3C

split-complementary

#1F286A #6A3C1F #4E6A1F

monochromatic

#070918 #11163B #1F286A #2D3A99 #3D4EC6

Accessibility & contrast

On white

13.38

#1F286A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1F286A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F286A

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F286A	#FFFFFF	#000000	##FFFFFF
##1F286A	1.00	13.38	1.57	13.38
#FFFFFF	13.38	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336C

Deuteranopia (green-blind)

#002C69

Tritanopia (blue-blind)

#003844

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f286a;
/* rgb */ color: rgb(31, 40, 106);
/* oklch */ color: oklch(31.3% 0.115 272.1);

Tailwind

colors: {
  custom: {
    50: '#656195',
    500: '#1f286a',
    950: '#000000',
  },
}

SCSS

$custom: #1f286a;
$custom-light: #656195;
$custom-dark: #000000;

JSON

{
  "hex": "#1f286a",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 106
  },
  "hsl": {
    "h": 232.8,
    "s": 54.745,
    "l": 26.863
  },
  "oklch": {
    "l": 0.31331,
    "c": 0.11474,
    "h": 272.1
  },
  "luminance": 0.02849
}

Semantic roles & 50–950 ramp

primary

#1F286A

secondary

#9E9447

accent

#CC4ADE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1F286A

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

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