#1C4B97#1C4B97

#1C4B97 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.6% C 0.135 H 259.8°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#1C4B97
RGB	rgb(28, 75, 151)
HSL	hsl(217, 69%, 35%)
HSV	hsv(217, 81%, 59%)
CMYK	cmyk(81.5%, 50.3%, 0%, 40.8%)
CIE-LAB	lab(32.95, 13.31, -46.14)
CIE-LCH	lch(32.95, 48.02, 286.09°)
OKLab	oklab(42.62% -0.024 -0.1327)
OKLCH	oklch(42.62% 0.135 259.8)
XYZ	xyz(8.5788, 7.5124, 30.2700)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4B97 #97681C

analogous

#1C8997 #1C4B97 #2A1C97

triadic

#1C4B97 #971C4B #4B971C

tetradic

#1C4B97 #971C89 #97681C #1C972A

square

#1C4B97 #971C89 #97681C #1C972A

split-complementary

#1C4B97 #972A1C #89971C

monochromatic

#091830 #123163 #1C4B97 #2665CB #4F86DE

Accessibility & contrast

On white

8.39

#1C4B97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1C4B97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4B97

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4B97	#FFFFFF	#000000	##FFFFFF
##1C4B97	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D539A

Deuteranopia (green-blind)

#004895

Tritanopia (blue-blind)

#005D6A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1c4b97;
/* rgb */ color: rgb(28, 75, 151);
/* oklch */ color: oklch(42.6% 0.135 259.8);

Tailwind

colors: {
  custom: {
    50: '#6d7cb6',
    500: '#1c4b97',
    950: '#000000',
  },
}

SCSS

$custom: #1c4b97;
$custom-light: #6d7cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4b97",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 151
  },
  "hsl": {
    "h": 217.073,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.42623,
    "c": 0.1349,
    "h": 259.8
  },
  "luminance": 0.07513
}

Semantic roles & 50–950 ramp

primary

#1C4B97

secondary

#C1954E

accent

#A93CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4B97

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

Preview Lab → · Contrast checker → · Palette generator →