#1F286E#1F286E

#1F286E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.7% C 0.121 H 272.0°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F286E
RGB	rgb(31, 40, 110)
HSL	hsl(233, 56%, 28%)
HSV	hsv(233, 72%, 43%)
CMYK	cmyk(71.8%, 63.6%, 0%, 56.9%)
CIE-LAB	lab(19.78, 21.67, -41.83)
CIE-LCH	lch(19.78, 47.11, 297.38°)
OKLab	oklab(31.7% 0.0041 -0.1206)
OKLCH	oklch(31.7% 0.121 272)
XYZ	xyz(4.1374, 2.9343, 15.0972)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F286E #6E651F

analogous

#1F4F6E #1F286E #3E1F6E

triadic

#1F286E #6E1F28 #286E1F

tetradic

#1F286E #6E1F4F #6E651F #1F6E3E

square

#1F286E #6E1F4F #6E651F #1F6E3E

split-complementary

#1F286E #6E3E1F #4F6E1F

monochromatic

#070918 #12173E #1F286E #2C399E #3F4EC9

Accessibility & contrast

On white

13.23

#1F286E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1F286E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F286E

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F286E	#FFFFFF	#000000	##FFFFFF
##1F286E	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003470

Deuteranopia (green-blind)

#002C6D

Tritanopia (blue-blind)

#003A46

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f286e;
/* rgb */ color: rgb(31, 40, 110);
/* oklch */ color: oklch(31.7% 0.121 272.0);

Tailwind

colors: {
  custom: {
    50: '#666198',
    500: '#1f286e',
    950: '#000000',
  },
}

SCSS

$custom: #1f286e;
$custom-light: #666198;
$custom-dark: #000000;

JSON

{
  "hex": "#1f286e",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 110
  },
  "hsl": {
    "h": 233.165,
    "s": 56.028,
    "l": 27.647
  },
  "oklch": {
    "l": 0.31699,
    "c": 0.12069,
    "h": 272
  },
  "luminance": 0.02935
}

Semantic roles & 50–950 ramp

primary

#1F286E

secondary

#A29847

accent

#CE48DF

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1F286E

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

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