#1C409B#1C409B

#1C409B is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.6% C 0.154 H 264.2°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#1C409B
RGB	rgb(28, 64, 155)
HSL	hsl(223, 69%, 36%)
HSV	hsv(223, 82%, 61%)
CMYK	cmyk(81.9%, 58.7%, 0%, 39.2%)
CIE-LAB	lab(30.11, 22.44, -53.18)
CIE-LCH	lch(30.11, 57.72, 292.88°)
OKLab	oklab(40.56% -0.0156 -0.1536)
OKLCH	oklch(40.56% 0.154 264.2)
XYZ	xyz(8.2266, 6.2792, 31.7824)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C409B #9B771C

analogous

#1C7F9B #1C409B #371C9B

triadic

#1C409B #9B1C40 #409B1C

tetradic

#1C409B #9B1C7F #9B771C #1C9B37

square

#1C409B #9B1C7F #9B771C #1C9B37

split-complementary

#1C409B #9B371C #7F9B1C

monochromatic

#091533 #132B67 #1C409B #2555CF #527AE0

Accessibility & contrast

On white

9.31

#1C409B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1C409B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C409B

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C409B	#FFFFFF	#000000	##FFFFFF
##1C409B	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9E

Deuteranopia (green-blind)

#004199

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c409b;
/* rgb */ color: rgb(28, 64, 155);
/* oklch */ color: oklch(40.6% 0.154 264.2);

Tailwind

colors: {
  custom: {
    50: '#6f74b9',
    500: '#1c409b',
    950: '#000000',
  },
}

SCSS

$custom: #1c409b;
$custom-light: #6f74b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c409b",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 155
  },
  "hsl": {
    "h": 222.992,
    "s": 69.399,
    "l": 35.882
  },
  "oklch": {
    "l": 0.40564,
    "c": 0.15444,
    "h": 264.2
  },
  "luminance": 0.0628
}

Semantic roles & 50–950 ramp

primary

#1C409B

secondary

#C3A250

accent

#BA3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1C409B

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

Preview Lab → · Contrast checker → · Palette generator →