#1F2D4E#1F2D4E

#1F2D4E is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.3% C 0.063 H 265.4°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D4E
RGB	rgb(31, 45, 78)
HSL	hsl(222, 43%, 21%)
HSV	hsv(222, 60%, 31%)
CMYK	cmyk(60.3%, 42.3%, 0%, 69.4%)
CIE-LAB	lab(18.88, 5.51, -22.14)
CIE-LCH	lch(18.88, 22.82, 283.99°)
OKLab	oklab(30.25% -0.005 -0.0627)
OKLCH	oklch(30.25% 0.063 265.4)
XYZ	xyz(2.8781, 2.7179, 7.5792)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D4E #4E401F

analogous

#1F454E #1F2D4E #291F4E

triadic

#1F2D4E #4E1F2D #2D4E1F

tetradic

#1F2D4E #4E1F45 #4E401F #1F4E29

square

#1F2D4E #4E1F45 #4E401F #1F4E29

split-complementary

#1F2D4E #4E291F #454E1F

monochromatic

#090D16 #0E1422 #1F2D4E #30467A #4260A6

Accessibility & contrast

On white

13.60

#1F2D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1F2D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D4E

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D4E	#FFFFFF	#000000	##FFFFFF
##1F2D4E	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20304F

Deuteranopia (green-blind)

#1A2C4D

Tritanopia (blue-blind)

#053439

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f2d4e;
/* rgb */ color: rgb(31, 45, 78);
/* oklch */ color: oklch(30.3% 0.063 265.4);

Tailwind

colors: {
  custom: {
    50: '#5f6580',
    500: '#1f2d4e',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d4e;
$custom-light: #5f6580;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d4e",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 78
  },
  "hsl": {
    "h": 222.128,
    "s": 43.119,
    "l": 21.373
  },
  "oklch": {
    "l": 0.30252,
    "c": 0.0629,
    "h": 265.4
  },
  "luminance": 0.02718
}

Semantic roles & 50–950 ramp

primary

#1F2D4E

secondary

#837146

accent

#AD55D3

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#05050A

muted

#797A7C

Preview Lab

Preview with #1F2D4E

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

Preview Lab → · Contrast checker → · Palette generator →