#1C488F#1C488F

#1C488F is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.3% C 0.127 H 259.7°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#1C488F
RGB	rgb(28, 72, 143)
HSL	hsl(217, 67%, 34%)
HSV	hsv(217, 80%, 56%)
CMYK	cmyk(80.4%, 49.7%, 0%, 43.9%)
CIE-LAB	lab(31.50, 12.12, -43.60)
CIE-LCH	lch(31.50, 45.26, 285.53°)
OKLab	oklab(41.33% -0.0228 -0.1253)
OKLCH	oklch(41.33% 0.127 259.7)
XYZ	xyz(7.7524, 6.8639, 26.8976)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C488F #8F631C

analogous

#1C818F #1C488F #291C8F

triadic

#1C488F #8F1C48 #488F1C

tetradic

#1C488F #8F1C81 #8F631C #1C8F29

square

#1C488F #8F1C81 #8F631C #1C8F29

split-complementary

#1C488F #8F291C #818F1C

monochromatic

#081429 #122E5C #1C488F #2662C2 #4A82DC

Accessibility & contrast

On white

8.85

#1C488F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1C488F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C488F

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C488F	#FFFFFF	#000000	##FFFFFF
##1C488F	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5092

Deuteranopia (green-blind)

#00458E

Tritanopia (blue-blind)

#005964

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c488f;
/* rgb */ color: rgb(28, 72, 143);
/* oklch */ color: oklch(41.3% 0.127 259.7);

Tailwind

colors: {
  custom: {
    50: '#6b7ab0',
    500: '#1c488f',
    950: '#000000',
  },
}

SCSS

$custom: #1c488f;
$custom-light: #6b7ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c488f",
  "rgb": {
    "r": 28,
    "g": 72,
    "b": 143
  },
  "hsl": {
    "h": 217.043,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.4133,
    "c": 0.1274,
    "h": 259.7
  },
  "luminance": 0.06865
}

Semantic roles & 50–950 ramp

primary

#1C488F

secondary

#BE9149

accent

#A83EEA

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1C488F

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

Preview Lab → · Contrast checker → · Palette generator →