#1D2F8E#1D2F8E

#1D2F8E is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.0% C 0.158 H 268.5°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F8E
RGB	rgb(29, 47, 142)
HSL	hsl(230, 66%, 34%)
HSV	hsv(230, 80%, 56%)
CMYK	cmyk(79.6%, 66.9%, 0%, 44.3%)
CIE-LAB	lab(24.47, 29.02, -54.41)
CIE-LCH	lch(24.47, 61.67, 298.07°)
OKLab	oklab(36.04% -0.0042 -0.1575)
OKLCH	oklch(36.04% 0.158 268.5)
XYZ	xyz(6.4040, 4.2465, 26.0681)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F8E #8E7C1D

analogous

#1D678E #1D2F8E #431D8E

triadic

#1D2F8E #8E1D2F #2F8E1D

tetradic

#1D2F8E #8E1D67 #8E7C1D #1D8E43

square

#1D2F8E #8E1D67 #8E7C1D #1D8E43

split-complementary

#1D2F8E #8E431D #678E1D

monochromatic

#080D28 #131E5B #1D2F8E #2740C1 #4B62DA

Accessibility & contrast

On white

11.36

#1D2F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1D2F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F8E

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F8E	#FFFFFF	#000000	##FFFFFF
##1D2F8E	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004091

Deuteranopia (green-blind)

#00358C

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d2f8e;
/* rgb */ color: rgb(29, 47, 142);
/* oklch */ color: oklch(36.0% 0.158 268.5);

Tailwind

colors: {
  custom: {
    50: '#6d67b0',
    500: '#1d2f8e',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f8e;
$custom-light: #6d67b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f8e",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 142
  },
  "hsl": {
    "h": 230.442,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.36035,
    "c": 0.15753,
    "h": 268.5
  },
  "luminance": 0.04247
}

Semantic roles & 50–950 ramp

primary

#1D2F8E

secondary

#BDAA4A

accent

#CE3FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1D2F8E

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

Preview Lab → · Contrast checker → · Palette generator →