#1C408B#1C408B

#1C408B is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.2% C 0.132 H 262.6°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#1C408B
RGB	rgb(28, 64, 139)
HSL	hsl(221, 66%, 33%)
HSV	hsv(221, 80%, 55%)
CMYK	cmyk(79.9%, 54%, 0%, 45.5%)
CIE-LAB	lab(28.84, 16.00, -45.43)
CIE-LCH	lch(28.84, 48.17, 289.41°)
OKLab	oklab(39.21% -0.0169 -0.1309)
OKLCH	oklch(39.21% 0.132 262.6)
XYZ	xyz(6.9708, 5.7769, 25.1688)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C408B #8B671C

analogous

#1C778B #1C408B #301C8B

triadic

#1C408B #8B1C40 #408B1C

tetradic

#1C408B #8B1C77 #8B671C #1C8B30

square

#1C408B #8B1C77 #8B671C #1C8B30

split-complementary

#1C408B #8B301C #778B1C

monochromatic

#071125 #122958 #1C408B #2657BE #4777DA

Accessibility & contrast

On white

9.74

#1C408B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1C408B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C408B

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C408B	#FFFFFF	#000000	##FFFFFF
##1C408B	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09498E

Deuteranopia (green-blind)

#003F8A

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c408b;
/* rgb */ color: rgb(28, 64, 139);
/* oklch */ color: oklch(39.2% 0.132 262.6);

Tailwind

colors: {
  custom: {
    50: '#6b74ad',
    500: '#1c408b',
    950: '#000000',
  },
}

SCSS

$custom: #1c408b;
$custom-light: #6b74ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c408b",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 139
  },
  "hsl": {
    "h": 220.541,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.39211,
    "c": 0.13196,
    "h": 262.6
  },
  "luminance": 0.05778
}

Semantic roles & 50–950 ramp

primary

#1C408B

secondary

#BC9647

accent

#B23EE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1C408B

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

Preview Lab → · Contrast checker → · Palette generator →