#1F2B79#1F2B79

#1F2B79 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.3% C 0.133 H 270.6°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F2B79
RGB	rgb(31, 43, 121)
HSL	hsl(232, 59%, 30%)
HSV	hsv(232, 74%, 47%)
CMYK	cmyk(74.4%, 64.5%, 0%, 52.5%)
CIE-LAB	lab(21.58, 23.86, -45.96)
CIE-LCH	lch(21.58, 51.78, 297.44°)
OKLab	oklab(33.33% 0.0014 -0.1327)
OKLCH	oklch(33.33% 0.133 270.6)
XYZ	xyz(4.8790, 3.3990, 18.4844)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2B79 #796D1F

analogous

#1F5879 #1F2B79 #401F79

triadic

#1F2B79 #791F2B #2B791F

tetradic

#1F2B79 #791F58 #796D1F #1F7940

square

#1F2B79 #791F58 #796D1F #1F7940

split-complementary

#1F2B79 #79401F #58791F

monochromatic

#060918 #131A48 #1F2B79 #2B3CAA #4356CF

Accessibility & contrast

On white

12.50

#1F2B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1F2B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2B79

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2B79	#FFFFFF	#000000	##FFFFFF
##1F2B79	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387C

Deuteranopia (green-blind)

#003077

Tritanopia (blue-blind)

#003F4D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2b79;
/* rgb */ color: rgb(31, 43, 121);
/* oklch */ color: oklch(33.3% 0.133 270.6);

Tailwind

colors: {
  custom: {
    50: '#6964a0',
    500: '#1f2b79',
    950: '#000000',
  },
}

SCSS

$custom: #1f2b79;
$custom-light: #6964a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2b79",
  "rgb": {
    "r": 31,
    "g": 43,
    "b": 121
  },
  "hsl": {
    "h": 232,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33333,
    "c": 0.13271,
    "h": 270.6
  },
  "luminance": 0.034
}

Semantic roles & 50–950 ramp

primary

#1F2B79

secondary

#AC9F47

accent

#CD45E2

background

#F6F5FA

surface

#ECEAF3

border

#C7C6CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1F2B79

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

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