#1C4797#1C4797

#1C4797 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.7% C 0.140 H 261.4°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#1C4797
RGB	rgb(28, 71, 151)
HSL	hsl(219, 69%, 35%)
HSV	hsv(219, 81%, 59%)
CMYK	cmyk(81.5%, 53%, 0%, 40.8%)
CIE-LAB	lab(31.78, 16.04, -48.03)
CIE-LCH	lch(31.78, 50.64, 288.46°)
OKLab	oklab(41.73% -0.0209 -0.1384)
OKLCH	oklch(41.73% 0.14 261.4)
XYZ	xyz(8.3160, 6.9867, 30.1824)
Luminance	0.0699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4797 #976C1C

analogous

#1C8597 #1C4797 #2E1C97

triadic

#1C4797 #971C47 #47971C

tetradic

#1C4797 #971C85 #976C1C #1C972E

square

#1C4797 #971C85 #976C1C #1C972E

split-complementary

#1C4797 #972E1C #85971C

monochromatic

#091630 #122F63 #1C4797 #265FCB #4F81DE

Accessibility & contrast

On white

8.76

#1C4797 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1C4797 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4797

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4797	#FFFFFF	#000000	##FFFFFF
##1C4797	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F519A

Deuteranopia (green-blind)

#004595

Tritanopia (blue-blind)

#005A68

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1c4797;
/* rgb */ color: rgb(28, 71, 151);
/* oklch */ color: oklch(41.7% 0.140 261.4);

Tailwind

colors: {
  custom: {
    50: '#6d79b6',
    500: '#1c4797',
    950: '#000000',
  },
}

SCSS

$custom: #1c4797;
$custom-light: #6d79b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4797",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 151
  },
  "hsl": {
    "h": 219.024,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.41729,
    "c": 0.13996,
    "h": 261.4
  },
  "luminance": 0.06988
}

Semantic roles & 50–950 ramp

primary

#1C4797

secondary

#C1994E

accent

#AE3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4797

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

Preview Lab → · Contrast checker → · Palette generator →