#1F2F68#1F2F68

#1F2F68 is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.7% C 0.102 H 268.4°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F68
RGB	rgb(31, 47, 104)
HSL	hsl(227, 54%, 26%)
HSV	hsv(227, 70%, 41%)
CMYK	cmyk(70.2%, 54.8%, 0%, 59.2%)
CIE-LAB	lab(21.30, 14.31, -35.48)
CIE-LCH	lch(21.30, 38.25, 291.96°)
OKLab	oklab(32.68% -0.0028 -0.1018)
OKLCH	oklch(32.68% 0.102 268.4)
XYZ	xyz(4.0794, 3.3234, 13.5205)
Luminance	0.0332 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F68 #68581F

analogous

#1F5468 #1F2F68 #341F68

triadic

#1F2F68 #681F2F #2F681F

tetradic

#1F2F68 #681F54 #68581F #1F6834

square

#1F2F68 #681F54 #68581F #1F6834

split-complementary

#1F2F68 #68341F #54681F

monochromatic

#070B18 #111A39 #1F2F68 #2D4497 #3C5AC5

Accessibility & contrast

On white

12.61

#1F2F68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1F2F68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F68

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F68	#FFFFFF	#000000	##FFFFFF
##1F2F68	1.00	12.61	1.66	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C376A

Deuteranopia (green-blind)

#003067

Tritanopia (blue-blind)

#003C46

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2f68;
/* rgb */ color: rgb(31, 47, 104);
/* oklch */ color: oklch(32.7% 0.102 268.4);

Tailwind

colors: {
  custom: {
    50: '#646794',
    500: '#1f2f68',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f68;
$custom-light: #646794;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f68",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 104
  },
  "hsl": {
    "h": 226.849,
    "s": 54.074,
    "l": 26.471
  },
  "oklch": {
    "l": 0.32679,
    "c": 0.10188,
    "h": 268.4
  },
  "luminance": 0.03324
}

Semantic roles & 50–950 ramp

primary

#1F2F68

secondary

#9C8A46

accent

#BD4ADD

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1F2F68

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

Preview Lab → · Contrast checker → · Palette generator →