#1B5498#1B5498

#1B5498 is a dark, vivid cyan. Relative luminance 0.088; OKLCH L 44.7% C 0.126 H 255.3°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#1B5498
RGB	rgb(27, 84, 152)
HSL	hsl(213, 70%, 35%)
HSV	hsv(213, 82%, 60%)
CMYK	cmyk(82.2%, 44.7%, 0%, 40.4%)
CIE-LAB	lab(35.67, 7.57, -42.36)
CIE-LCH	lch(35.67, 43.03, 280.13°)
OKLab	oklab(44.74% -0.0317 -0.1214)
OKLCH	oklch(44.74% 0.126 255.3)
XYZ	xyz(9.2877, 8.8395, 30.9164)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5498 #985F1B

analogous

#1B9298 #1B5498 #211B98

triadic

#1B5498 #981B54 #54981B

tetradic

#1B5498 #981B92 #985F1B #1B9821

square

#1B5498 #981B92 #985F1B #1B9821

split-complementary

#1B5498 #98211B #92981B

monochromatic

#091B30 #123764 #1B5498 #2471CC #4E90E0

Accessibility & contrast

On white

7.59

#1B5498 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#1B5498 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5498

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5498	#FFFFFF	#000000	##FFFFFF
##1B5498	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315A9B

Deuteranopia (green-blind)

#174F97

Tritanopia (blue-blind)

#00646E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b5498;
/* rgb */ color: rgb(27, 84, 152);
/* oklch */ color: oklch(44.7% 0.126 255.3);

Tailwind

colors: {
  custom: {
    50: '#6d83b7',
    500: '#1b5498',
    950: '#000000',
  },
}

SCSS

$custom: #1b5498;
$custom-light: #6d83b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5498",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 152
  },
  "hsl": {
    "h": 212.64,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.4474,
    "c": 0.12553,
    "h": 255.3
  },
  "luminance": 0.08841
}

Semantic roles & 50–950 ramp

primary

#1B5498

secondary

#C28D4D

accent

#9C3BED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1B5498

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

Preview Lab → · Contrast checker → · Palette generator →