#1D4B91#1D4B91

#1D4B91 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.2% C 0.126 H 258.9°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B91
RGB	rgb(29, 75, 145)
HSL	hsl(216, 67%, 34%)
HSV	hsv(216, 80%, 57%)
CMYK	cmyk(80%, 48.3%, 0%, 43.1%)
CIE-LAB	lab(32.56, 11.00, -43.11)
CIE-LCH	lch(32.56, 44.49, 284.32°)
OKLab	oklab(42.2% -0.0243 -0.1238)
OKLCH	oklch(42.2% 0.126 258.9)
XYZ	xyz(8.1317, 7.3367, 27.7701)
Luminance	0.0734 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B91 #91631D

analogous

#1D8591 #1D4B91 #291D91

triadic

#1D4B91 #911D4B #4B911D

tetradic

#1D4B91 #911D85 #91631D #1D9129

square

#1D4B91 #911D85 #91631D #1D9129

split-complementary

#1D4B91 #91291D #85911D

monochromatic

#09162B #13315E #1D4B91 #2765C4 #4D85DB

Accessibility & contrast

On white

8.51

#1D4B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1D4B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B91

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B91	#FFFFFF	#000000	##FFFFFF
##1D4B91	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245294

Deuteranopia (green-blind)

#024890

Tritanopia (blue-blind)

#005C67

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d4b91;
/* rgb */ color: rgb(29, 75, 145);
/* oklch */ color: oklch(42.2% 0.126 258.9);

Tailwind

colors: {
  custom: {
    50: '#6c7cb2',
    500: '#1d4b91',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b91;
$custom-light: #6c7cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b91",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 145
  },
  "hsl": {
    "h": 216.207,
    "s": 66.667,
    "l": 34.118
  },
  "oklch": {
    "l": 0.42204,
    "c": 0.12618,
    "h": 258.9
  },
  "luminance": 0.07338
}

Semantic roles & 50–950 ramp

primary

#1D4B91

secondary

#BE914C

accent

#A63EEA

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D4B91

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

Preview Lab → · Contrast checker → · Palette generator →