#1D448B#1D448B

#1D448B is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.1% C 0.127 H 261.2°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#1D448B
RGB	rgb(29, 68, 139)
HSL	hsl(219, 65%, 33%)
HSV	hsv(219, 79%, 55%)
CMYK	cmyk(79.1%, 51.1%, 0%, 45.5%)
CIE-LAB	lab(30.06, 13.36, -43.47)
CIE-LCH	lch(30.06, 45.47, 287.09°)
OKLab	oklab(40.15% -0.0194 -0.125)
OKLCH	oklch(40.15% 0.127 261.2)
XYZ	xyz(7.2323, 6.2587, 25.2480)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D448B #8B641D

analogous

#1D7B8B #1D448B #2D1D8B

triadic

#1D448B #8B1D44 #448B1D

tetradic

#1D448B #8B1D7B #8B641D #1D8B2D

square

#1D448B #8B1D7B #8B641D #1D8B2D

split-complementary

#1D448B #8B2D1D #7B8B1D

monochromatic

#081226 #122B58 #1D448B #285DBE #497CD9

Accessibility & contrast

On white

9.33

#1D448B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1D448B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D448B

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D448B	#FFFFFF	#000000	##FFFFFF
##1D448B	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194C8E

Deuteranopia (green-blind)

#00428A

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d448b;
/* rgb */ color: rgb(29, 68, 139);
/* oklch */ color: oklch(40.1% 0.127 261.2);

Tailwind

colors: {
  custom: {
    50: '#6b77ad',
    500: '#1d448b',
    950: '#000000',
  },
}

SCSS

$custom: #1d448b;
$custom-light: #6b77ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d448b",
  "rgb": {
    "r": 29,
    "g": 68,
    "b": 139
  },
  "hsl": {
    "h": 218.727,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.40147,
    "c": 0.1265,
    "h": 261.2
  },
  "luminance": 0.0626
}

Semantic roles & 50–950 ramp

primary

#1D448B

secondary

#BB9349

accent

#AC3FE8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D448B

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

Preview Lab → · Contrast checker → · Palette generator →