#1F2F6D#1F2F6D

#1F2F6D is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.1% C 0.110 H 268.8°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F6D
RGB	rgb(31, 47, 109)
HSL	hsl(228, 56%, 27%)
HSV	hsv(228, 72%, 43%)
CMYK	cmyk(71.6%, 56.9%, 0%, 57.3%)
CIE-LAB	lab(21.68, 16.30, -38.09)
CIE-LCH	lch(21.68, 41.43, 293.17°)
OKLab	oklab(33.09% -0.0023 -0.1095)
OKLCH	oklch(33.09% 0.11 268.8)
XYZ	xyz(4.3410, 3.4280, 14.8979)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F6D #6D5D1F

analogous

#1F566D #1F2F6D #361F6D

triadic

#1F2F6D #6D1F2F #2F6D1F

tetradic

#1F2F6D #6D1F56 #6D5D1F #1F6D36

square

#1F2F6D #6D1F56 #6D5D1F #1F6D36

split-complementary

#1F2F6D #6D361F #566D1F

monochromatic

#070A18 #111A3D #1F2F6D #2D449D #3E5BC8

Accessibility & contrast

On white

12.46

#1F2F6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F2F6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F6D

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F6D	#FFFFFF	#000000	##FFFFFF
##1F2F6D	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02386F

Deuteranopia (green-blind)

#00316C

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2f6d;
/* rgb */ color: rgb(31, 47, 109);
/* oklch */ color: oklch(33.1% 0.110 268.8);

Tailwind

colors: {
  custom: {
    50: '#656797',
    500: '#1f2f6d',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f6d;
$custom-light: #656797;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f6d",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 109
  },
  "hsl": {
    "h": 227.692,
    "s": 55.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.33094,
    "c": 0.10955,
    "h": 268.8
  },
  "luminance": 0.03428
}

Semantic roles & 50–950 ramp

primary

#1F2F6D

secondary

#A18F47

accent

#C049DF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1F2F6D

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

Preview Lab → · Contrast checker → · Palette generator →