#1C338D#1C338D

#1C338D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.7% C 0.152 H 267.1°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#1C338D
RGB	rgb(28, 51, 141)
HSL	hsl(228, 67%, 33%)
HSV	hsv(228, 80%, 55%)
CMYK	cmyk(80.1%, 63.8%, 0%, 44.7%)
CIE-LAB	lab(25.37, 25.81, -52.32)
CIE-LCH	lch(25.37, 58.34, 296.26°)
OKLab	oklab(36.66% -0.0075 -0.1513)
OKLCH	oklch(36.66% 0.152 267.1)
XYZ	xyz(6.4688, 4.5369, 25.7289)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C338D #8D761C

analogous

#1C6B8D #1C338D #3E1C8D

triadic

#1C338D #8D1C33 #338D1C

tetradic

#1C338D #8D1C6B #8D761C #1C8D3E

square

#1C338D #8D1C6B #8D761C #1C8D3E

split-complementary

#1C338D #8D3E1C #6B8D1C

monochromatic

#080E27 #12215A #1C338D #2645C0 #4966DB

Accessibility & contrast

On white

11.01

#1C338D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1C338D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C338D

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C338D	#FFFFFF	#000000	##FFFFFF
##1C338D	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004290

Deuteranopia (green-blind)

#00378B

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c338d;
/* rgb */ color: rgb(28, 51, 141);
/* oklch */ color: oklch(36.7% 0.152 267.1);

Tailwind

colors: {
  custom: {
    50: '#6c6aaf',
    500: '#1c338d',
    950: '#000000',
  },
}

SCSS

$custom: #1c338d;
$custom-light: #6c6aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#1c338d",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 141
  },
  "hsl": {
    "h": 227.788,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36658,
    "c": 0.15151,
    "h": 267.1
  },
  "luminance": 0.04538
}

Semantic roles & 50–950 ramp

primary

#1C338D

secondary

#BDA548

accent

#C73EEA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1C338D

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

Preview Lab → · Contrast checker → · Palette generator →