#1C4B98#1C4B98

#1C4B98 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.136 H 259.9°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#1C4B98
RGB	rgb(28, 75, 152)
HSL	hsl(217, 69%, 35%)
HSV	hsv(217, 82%, 60%)
CMYK	cmyk(81.6%, 50.7%, 0%, 40.4%)
CIE-LAB	lab(33.02, 13.71, -46.63)
CIE-LCH	lch(33.02, 48.61, 286.39°)
OKLab	oklab(42.7% -0.0238 -0.1342)
OKLCH	oklch(42.7% 0.136 259.9)
XYZ	xyz(8.6604, 7.5450, 30.6996)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4B98 #98691C

analogous

#1C8998 #1C4B98 #2B1C98

triadic

#1C4B98 #981C4B #4B981C

tetradic

#1C4B98 #981C89 #98691C #1C982B

square

#1C4B98 #981C89 #98691C #1C982B

split-complementary

#1C4B98 #982B1C #89981C

monochromatic

#091831 #123164 #1C4B98 #2664CC #5086DF

Accessibility & contrast

On white

8.37

#1C4B98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1C4B98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4B98

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4B98	#FFFFFF	#000000	##FFFFFF
##1C4B98	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C549B

Deuteranopia (green-blind)

#004896

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c4b98;
/* rgb */ color: rgb(28, 75, 152);
/* oklch */ color: oklch(42.7% 0.136 259.9);

Tailwind

colors: {
  custom: {
    50: '#6d7cb7',
    500: '#1c4b98',
    950: '#000000',
  },
}

SCSS

$custom: #1c4b98;
$custom-light: #6d7cb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4b98",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 152
  },
  "hsl": {
    "h": 217.258,
    "s": 68.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.427,
    "c": 0.1363,
    "h": 259.9
  },
  "luminance": 0.07546
}

Semantic roles & 50–950 ramp

primary

#1C4B98

secondary

#C1964E

accent

#A93CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4B98

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

Preview Lab → · Contrast checker → · Palette generator →