#1D2B7B#1D2B7B

#1D2B7B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.136 H 269.7°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B7B
RGB	rgb(29, 43, 123)
HSL	hsl(231, 62%, 30%)
HSV	hsv(231, 76%, 48%)
CMYK	cmyk(76.4%, 65%, 0%, 51.8%)
CIE-LAB	lab(21.65, 24.38, -47.12)
CIE-LCH	lch(21.65, 53.05, 297.36°)
OKLab	oklab(33.41% -0.0008 -0.1361)
OKLCH	oklch(33.41% 0.136 269.7)
XYZ	xyz(4.9445, 3.4185, 19.1343)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B7B #7B6D1D

analogous

#1D5A7B #1D2B7B #3E1D7B

triadic

#1D2B7B #7B1D2B #2B7B1D

tetradic

#1D2B7B #7B1D5A #7B6D1D #1D7B3E

square

#1D2B7B #7B1D5A #7B6D1D #1D7B3E

split-complementary

#1D2B7B #7B3E1D #5A7B1D

monochromatic

#060919 #111A49 #1D2B7B #293CAD #4056D2

Accessibility & contrast

On white

12.47

#1D2B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1D2B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B7B

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B7B	#FFFFFF	#000000	##FFFFFF
##1D2B7B	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387E

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#00404E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d2b7b;
/* rgb */ color: rgb(29, 43, 123);
/* oklch */ color: oklch(33.4% 0.136 269.7);

Tailwind

colors: {
  custom: {
    50: '#6864a2',
    500: '#1d2b7b',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b7b;
$custom-light: #6864a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b7b",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 123
  },
  "hsl": {
    "h": 231.064,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33412,
    "c": 0.13614,
    "h": 269.7
  },
  "luminance": 0.03419
}

Semantic roles & 50–950 ramp

primary

#1D2B7B

secondary

#AF9F45

accent

#CD43E5

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D2B7B

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

Preview Lab → · Contrast checker → · Palette generator →