#1B528C#1B528C

#1B528C is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.4% C 0.111 H 252.9°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#1B528C
RGB	rgb(27, 82, 140)
HSL	hsl(211, 68%, 33%)
HSV	hsv(211, 81%, 55%)
CMYK	cmyk(80.7%, 41.4%, 0%, 45.1%)
CIE-LAB	lab(34.31, 4.07, -37.25)
CIE-LCH	lch(34.31, 37.47, 276.24°)
OKLab	oklab(43.44% -0.0327 -0.1065)
OKLCH	oklch(43.44% 0.111 252.9)
XYZ	xyz(8.2011, 8.1601, 25.9487)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B528C #8C551B

analogous

#1B8B8C #1B528C #1C1B8C

triadic

#1B528C #8C1B52 #528C1B

tetradic

#1B528C #8C1B8B #8C551B #1B8C1C

square

#1B528C #8C1B8B #8C551B #1B8C1C

split-complementary

#1B528C #8C1C1B #8B8C1B

monochromatic

#071625 #113459 #1B528C #2570BF #468FDB

Accessibility & contrast

On white

7.98

#1B528C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#1B528C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B528C

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B528C	#FFFFFF	#000000	##FFFFFF
##1B528C	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36568E

Deuteranopia (green-blind)

#234C8B

Tritanopia (blue-blind)

#006068

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1b528c;
/* rgb */ color: rgb(27, 82, 140);
/* oklch */ color: oklch(43.4% 0.111 252.9);

Tailwind

colors: {
  custom: {
    50: '#6a82ae',
    500: '#1b528c',
    950: '#000000',
  },
}

SCSS

$custom: #1b528c;
$custom-light: #6a82ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b528c",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 140
  },
  "hsl": {
    "h": 210.796,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.43441,
    "c": 0.11139,
    "h": 252.9
  },
  "luminance": 0.08161
}

Semantic roles & 50–950 ramp

primary

#1B528C

secondary

#BD8346

accent

#963DEB

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B528C

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

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