#1D4797#1D4797

#1D4797 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.8% C 0.140 H 261.7°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#1D4797
RGB	rgb(29, 71, 151)
HSL	hsl(219, 68%, 35%)
HSV	hsv(219, 81%, 59%)
CMYK	cmyk(80.8%, 53%, 0%, 40.8%)
CIE-LAB	lab(31.81, 16.14, -47.98)
CIE-LCH	lch(31.81, 50.62, 288.60°)
OKLab	oklab(41.76% -0.0202 -0.1382)
OKLCH	oklch(41.76% 0.14 261.7)
XYZ	xyz(8.3438, 7.0011, 30.1837)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4797 #976D1D

analogous

#1D8497 #1D4797 #301D97

triadic

#1D4797 #971D47 #47971D

tetradic

#1D4797 #971D84 #976D1D #1D9730

square

#1D4797 #971D84 #976D1D #1D9730

split-complementary

#1D4797 #97301D #84971D

monochromatic

#091730 #132F64 #1D4797 #275FCA #5181DE

Accessibility & contrast

On white

8.75

#1D4797 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1D4797 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4797

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4797	#FFFFFF	#000000	##FFFFFF
##1D4797	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F519A

Deuteranopia (green-blind)

#004695

Tritanopia (blue-blind)

#005A68

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1d4797;
/* rgb */ color: rgb(29, 71, 151);
/* oklch */ color: oklch(41.8% 0.140 261.7);

Tailwind

colors: {
  custom: {
    50: '#6e79b6',
    500: '#1d4797',
    950: '#000000',
  },
}

SCSS

$custom: #1d4797;
$custom-light: #6e79b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4797",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 151
  },
  "hsl": {
    "h": 219.344,
    "s": 67.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.41763,
    "c": 0.13969,
    "h": 261.7
  },
  "luminance": 0.07002
}

Semantic roles & 50–950 ramp

primary

#1D4797

secondary

#C0994F

accent

#AF3DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D4797

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

Preview Lab → · Contrast checker → · Palette generator →