#1C499B#1C499B

#1C499B is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.5% C 0.143 H 261.2°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#1C499B
RGB	rgb(28, 73, 155)
HSL	hsl(219, 69%, 36%)
HSV	hsv(219, 82%, 61%)
CMYK	cmyk(81.9%, 52.9%, 0%, 39.2%)
CIE-LAB	lab(32.65, 16.28, -49.04)
CIE-LCH	lch(32.65, 51.68, 288.37°)
OKLab	oklab(42.49% -0.0219 -0.1413)
OKLCH	oklch(42.49% 0.143 261.2)
XYZ	xyz(8.7757, 7.3775, 31.9655)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C499B #9B6E1C

analogous

#1C889B #1C499B #2E1C9B

triadic

#1C499B #9B1C49 #499B1C

tetradic

#1C499B #9B1C88 #9B6E1C #1C9B2E

square

#1C499B #9B1C88 #9B6E1C #1C9B2E

split-complementary

#1C499B #9B2E1C #889B1C

monochromatic

#091833 #133167 #1C499B #2561CF #5284E0

Accessibility & contrast

On white

8.48

#1C499B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1C499B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C499B

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C499B	#FFFFFF	#000000	##FFFFFF
##1C499B	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F539E

Deuteranopia (green-blind)

#004799

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1c499b;
/* rgb */ color: rgb(28, 73, 155);
/* oklch */ color: oklch(42.5% 0.143 261.2);

Tailwind

colors: {
  custom: {
    50: '#6e7bb9',
    500: '#1c499b',
    950: '#000000',
  },
}

SCSS

$custom: #1c499b;
$custom-light: #6e7bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c499b",
  "rgb": {
    "r": 28,
    "g": 73,
    "b": 155
  },
  "hsl": {
    "h": 218.74,
    "s": 69.399,
    "l": 35.882
  },
  "oklch": {
    "l": 0.4249,
    "c": 0.14302,
    "h": 261.2
  },
  "luminance": 0.07379
}

Semantic roles & 50–950 ramp

primary

#1C499B

secondary

#C39A50

accent

#AE3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C499B

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

Preview Lab → · Contrast checker → · Palette generator →