#1D4F9F#1D4F9F

#1D4F9F is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.2% C 0.141 H 259.6°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D4F9F
RGB	rgb(29, 79, 159)
HSL	hsl(217, 69%, 37%)
HSV	hsv(217, 82%, 62%)
CMYK	cmyk(81.8%, 50.3%, 0%, 37.6%)
CIE-LAB	lab(34.71, 13.93, -48.12)
CIE-LCH	lch(34.71, 50.10, 286.14°)
OKLab	oklab(44.17% -0.0253 -0.1385)
OKLCH	oklch(44.17% 0.141 259.6)
XYZ	xyz(9.5584, 8.3552, 33.9031)
Luminance	0.0836 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4F9F #9F6D1D

analogous

#1D909F #1D4F9F #2C1D9F

triadic

#1D4F9F #9F1D4F #4F9F1D

tetradic

#1D4F9F #9F1D90 #9F6D1D #1D9F2C

square

#1D4F9F #9F1D90 #9F6D1D #1D9F2C

split-complementary

#1D4F9F #9F2C1D #909F1D

monochromatic

#0A1C37 #14356B #1D4F9F #2669D3 #568BE0

Accessibility & contrast

On white

7.86

#1D4F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1D4F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4F9F

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4F9F	#FFFFFF	#000000	##FFFFFF
##1D4F9F	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E58A2

Deuteranopia (green-blind)

#004C9D

Tritanopia (blue-blind)

#00626F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d4f9f;
/* rgb */ color: rgb(29, 79, 159);
/* oklch */ color: oklch(44.2% 0.141 259.6);

Tailwind

colors: {
  custom: {
    50: '#6f7fbc',
    500: '#1d4f9f',
    950: '#000000',
  },
}

SCSS

$custom: #1d4f9f;
$custom-light: #6f7fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4f9f",
  "rgb": {
    "r": 29,
    "g": 79,
    "b": 159
  },
  "hsl": {
    "h": 216.923,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.44165,
    "c": 0.14077,
    "h": 259.6
  },
  "luminance": 0.08356
}

Semantic roles & 50–950 ramp

primary

#1D4F9F

secondary

#C49954

accent

#A83CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D4F9F

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

Preview Lab → · Contrast checker → · Palette generator →