#1D298B#1D298B

#1D298B is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.6% C 0.161 H 269.8°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#1D298B
RGB	rgb(29, 41, 139)
HSL	hsl(233, 65%, 33%)
HSV	hsv(233, 79%, 55%)
CMYK	cmyk(79.1%, 70.5%, 0%, 45.5%)
CIE-LAB	lab(22.69, 31.85, -55.47)
CIE-LCH	lch(22.69, 63.97, 299.87°)
OKLab	oklab(34.65% -0.0007 -0.1606)
OKLCH	oklch(34.65% 0.161 269.8)
XYZ	xyz(5.9582, 3.7105, 24.8233)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D298B #8B7F1D

analogous

#1D608B #1D298B #481D8B

triadic

#1D298B #8B1D29 #298B1D

tetradic

#1D298B #8B1D60 #8B7F1D #1D8B48

square

#1D298B #8B1D60 #8B7F1D #1D8B48

split-complementary

#1D298B #8B481D #608B1D

monochromatic

#080B26 #121A58 #1D298B #2838BE #4959D9

Accessibility & contrast

On white

12.05

#1D298B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1D298B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D298B

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D298B	#FFFFFF	#000000	##FFFFFF
##1D298B	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003189

Tritanopia (blue-blind)

#004456

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d298b;
/* rgb */ color: rgb(29, 41, 139);
/* oklch */ color: oklch(34.6% 0.161 269.8);

Tailwind

colors: {
  custom: {
    50: '#6d63ae',
    500: '#1d298b',
    950: '#000000',
  },
}

SCSS

$custom: #1d298b;
$custom-light: #6d63ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d298b",
  "rgb": {
    "r": 29,
    "g": 41,
    "b": 139
  },
  "hsl": {
    "h": 233.455,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34648,
    "c": 0.16059,
    "h": 269.8
  },
  "luminance": 0.03711
}

Semantic roles & 50–950 ramp

primary

#1D298B

secondary

#BBAF49

accent

#D63FE8

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1D298B

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

Preview Lab → · Contrast checker → · Palette generator →