#1F449A#1F449A

#1F449A is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.4% C 0.147 H 263.7°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#1F449A
RGB	rgb(31, 68, 154)
HSL	hsl(222, 66%, 36%)
HSV	hsv(222, 80%, 60%)
CMYK	cmyk(79.9%, 55.8%, 0%, 39.6%)
CIE-LAB	lab(31.25, 19.61, -50.71)
CIE-LCH	lch(31.25, 54.37, 291.14°)
OKLab	oklab(41.43% -0.0163 -0.1463)
OKLCH	oklch(41.43% 0.147 263.7)
XYZ	xyz(8.4629, 6.7577, 31.4239)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F449A #9A751F

analogous

#1F829A #1F449A #381F9A

triadic

#1F449A #9A1F44 #449A1F

tetradic

#1F449A #9A1F82 #9A751F #1F9A38

square

#1F449A #9A1F82 #9A751F #1F9A38

split-complementary

#1F449A #9A381F #829A1F

monochromatic

#0A1734 #152E67 #1F449A #295ACD #567FDD

Accessibility & contrast

On white

8.93

#1F449A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1F449A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F449A

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F449A	#FFFFFF	#000000	##FFFFFF
##1F449A	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9D

Deuteranopia (green-blind)

#004498

Tritanopia (blue-blind)

#005968

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f449a;
/* rgb */ color: rgb(31, 68, 154);
/* oklch */ color: oklch(41.4% 0.147 263.7);

Tailwind

colors: {
  custom: {
    50: '#6f77b8',
    500: '#1f449a',
    950: '#000000',
  },
}

SCSS

$custom: #1f449a;
$custom-light: #6f77b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f449a",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 154
  },
  "hsl": {
    "h": 221.951,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41429,
    "c": 0.14717,
    "h": 263.7
  },
  "luminance": 0.06759
}

Semantic roles & 50–950 ramp

primary

#1F449A

secondary

#C1A054

accent

#B63EE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #1F449A

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

Preview Lab → · Contrast checker → · Palette generator →