#1D528C#1D528C

#1D528C is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.5% C 0.111 H 253.4°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D528C
RGB	rgb(29, 82, 140)
HSL	hsl(211, 66%, 33%)
HSV	hsv(211, 79%, 55%)
CMYK	cmyk(79.3%, 41.4%, 0%, 45.1%)
CIE-LAB	lab(34.37, 4.31, -37.15)
CIE-LCH	lch(34.37, 37.40, 276.62°)
OKLab	oklab(43.5% -0.0316 -0.1062)
OKLCH	oklch(43.5% 0.111 253.4)
XYZ	xyz(8.2558, 8.1883, 25.9512)
Luminance	0.0819 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D528C #8C571D

analogous

#1D898C #1D528C #1F1D8C

triadic

#1D528C #8C1D52 #528C1D

tetradic

#1D528C #8C1D89 #8C571D #1D8C1F

square

#1D528C #8C1D89 #8C571D #1D8C1F

split-complementary

#1D528C #8C1F1D #898C1D

monochromatic

#081727 #123459 #1D528C #2870BF #4A8ED9

Accessibility & contrast

On white

7.96

#1D528C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1D528C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D528C

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D528C	#FFFFFF	#000000	##FFFFFF
##1D528C	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36568E

Deuteranopia (green-blind)

#244C8B

Tritanopia (blue-blind)

#006068

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d528c;
/* rgb */ color: rgb(29, 82, 140);
/* oklch */ color: oklch(43.5% 0.111 253.4);

Tailwind

colors: {
  custom: {
    50: '#6b82ae',
    500: '#1d528c',
    950: '#000000',
  },
}

SCSS

$custom: #1d528c;
$custom-light: #6b82ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d528c",
  "rgb": {
    "r": 29,
    "g": 82,
    "b": 140
  },
  "hsl": {
    "h": 211.351,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.43503,
    "c": 0.11075,
    "h": 253.4
  },
  "luminance": 0.08189
}

Semantic roles & 50–950 ramp

primary

#1D528C

secondary

#BC8549

accent

#983FE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1D528C

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

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