#1D528F#1D528F

#1D528F is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.7% C 0.115 H 254.4°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#1D528F
RGB	rgb(29, 82, 143)
HSL	hsl(212, 66%, 34%)
HSV	hsv(212, 80%, 56%)
CMYK	cmyk(79.7%, 42.7%, 0%, 43.9%)
CIE-LAB	lab(34.56, 5.51, -38.69)
CIE-LCH	lch(34.56, 39.08, 278.11°)
OKLab	oklab(43.71% -0.0309 -0.1107)
OKLCH	oklch(43.71% 0.115 254.4)
XYZ	xyz(8.4801, 8.2780, 27.1321)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D528F #8F5A1D

analogous

#1D8B8F #1D528F #211D8F

triadic

#1D528F #8F1D52 #528F1D

tetradic

#1D528F #8F1D8B #8F5A1D #1D8F21

square

#1D528F #8F1D8B #8F5A1D #1D8F21

split-complementary

#1D528F #8F211D #8B8F1D

monochromatic

#081829 #13355C #1D528F #276FC2 #4C8EDB

Accessibility & contrast

On white

7.91

#1D528F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1D528F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D528F

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D528F	#FFFFFF	#000000	##FFFFFF
##1D528F	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345791

Deuteranopia (green-blind)

#204C8E

Tritanopia (blue-blind)

#006069

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d528f;
/* rgb */ color: rgb(29, 82, 143);
/* oklch */ color: oklch(43.7% 0.115 254.4);

Tailwind

colors: {
  custom: {
    50: '#6b82b0',
    500: '#1d528f',
    950: '#000000',
  },
}

SCSS

$custom: #1d528f;
$custom-light: #6b82b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d528f",
  "rgb": {
    "r": 29,
    "g": 82,
    "b": 143
  },
  "hsl": {
    "h": 212.105,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.43705,
    "c": 0.1149,
    "h": 254.4
  },
  "luminance": 0.08279
}

Semantic roles & 50–950 ramp

primary

#1D528F

secondary

#BD884B

accent

#9A3FE9

background

#F6F7FA

surface

#ECEEF5

border

#C7C9CF

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1D528F

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

Preview Lab → · Contrast checker → · Palette generator →