#1D297F#1D297F

#1D297F is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.144 H 270.1°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#1D297F
RGB	rgb(29, 41, 127)
HSL	hsl(233, 63%, 31%)
HSV	hsv(233, 77%, 50%)
CMYK	cmyk(77.2%, 67.7%, 0%, 50.2%)
CIE-LAB	lab(21.50, 27.30, -49.89)
CIE-LCH	lch(21.50, 56.87, 298.69°)
OKLab	oklab(33.42% 0.0004 -0.1443)
OKLCH	oklch(33.42% 0.144 270.1)
XYZ	xyz(5.1291, 3.3788, 20.4564)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D297F #7F731D

analogous

#1D5A7F #1D297F #421D7F

triadic

#1D297F #7F1D29 #297F1D

tetradic

#1D297F #7F1D5A #7F731D #1D7F42

square

#1D297F #7F1D5A #7F731D #1D7F42

split-complementary

#1D297F #7F421D #5A7F1D

monochromatic

#06091B #12194D #1D297F #2839B1 #4254D4

Accessibility & contrast

On white

12.53

#1D297F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1D297F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D297F

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D297F	#FFFFFF	#000000	##FFFFFF
##1D297F	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003882

Deuteranopia (green-blind)

#002F7D

Tritanopia (blue-blind)

#004050

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d297f;
/* rgb */ color: rgb(29, 41, 127);
/* oklch */ color: oklch(33.4% 0.144 270.1);

Tailwind

colors: {
  custom: {
    50: '#6a62a5',
    500: '#1d297f',
    950: '#000000',
  },
}

SCSS

$custom: #1d297f;
$custom-light: #6a62a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d297f",
  "rgb": {
    "r": 29,
    "g": 41,
    "b": 127
  },
  "hsl": {
    "h": 232.653,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.33421,
    "c": 0.14429,
    "h": 270.1
  },
  "luminance": 0.03379
}

Semantic roles & 50–950 ramp

primary

#1D297F

secondary

#B2A545

accent

#D242E6

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D297F

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

Preview Lab → · Contrast checker → · Palette generator →