#1F2F6E#1F2F6E

#1F2F6E is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.2% C 0.111 H 268.8°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F6E
RGB	rgb(31, 47, 110)
HSL	hsl(228, 56%, 28%)
HSV	hsv(228, 72%, 43%)
CMYK	cmyk(71.8%, 57.3%, 0%, 56.9%)
CIE-LAB	lab(21.76, 16.70, -38.61)
CIE-LCH	lch(21.76, 42.06, 293.39°)
OKLab	oklab(33.18% -0.0022 -0.111)
OKLCH	oklch(33.18% 0.111 268.8)
XYZ	xyz(4.3951, 3.4497, 15.1831)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F6E #6E5E1F

analogous

#1F566E #1F2F6E #361F6E

triadic

#1F2F6E #6E1F2F #2F6E1F

tetradic

#1F2F6E #6E1F56 #6E5E1F #1F6E36

square

#1F2F6E #6E1F56 #6E5E1F #1F6E36

split-complementary

#1F2F6E #6E361F #566E1F

monochromatic

#070A18 #121B3E #1F2F6E #2C439E #3F5BC9

Accessibility & contrast

On white

12.43

#1F2F6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F2F6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F6E

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F6E	#FFFFFF	#000000	##FFFFFF
##1F2F6E	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003870

Deuteranopia (green-blind)

#00316D

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2f6e;
/* rgb */ color: rgb(31, 47, 110);
/* oklch */ color: oklch(33.2% 0.111 268.8);

Tailwind

colors: {
  custom: {
    50: '#666798',
    500: '#1f2f6e',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f6e;
$custom-light: #666798;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f6e",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 110
  },
  "hsl": {
    "h": 227.848,
    "s": 56.028,
    "l": 27.647
  },
  "oklch": {
    "l": 0.33179,
    "c": 0.11107,
    "h": 268.8
  },
  "luminance": 0.0345
}

Semantic roles & 50–950 ramp

primary

#1F2F6E

secondary

#A29047

accent

#C148DF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1F2F6E

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

Preview Lab → · Contrast checker → · Palette generator →