#284B7F#284B7F

#284B7F is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.4% C 0.096 H 258.2°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#284B7F
RGB	rgb(40, 75, 127)
HSL	hsl(216, 52%, 33%)
HSV	hsv(216, 69%, 50%)
CMYK	cmyk(68.5%, 40.9%, 0%, 50.2%)
CIE-LAB	lab(31.84, 5.55, -33.16)
CIE-LCH	lch(31.84, 33.62, 279.50°)
OKLab	oklab(41.4% -0.0197 -0.0944)
OKLCH	oklch(41.4% 0.096 258.2)
XYZ	xyz(7.2205, 7.0149, 21.0480)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B7F #7F5C28

analogous

#28767F #284B7F #30287F

triadic

#284B7F #7F284B #4B7F28

tetradic

#284B7F #7F2876 #7F5C28 #287F30

square

#284B7F #7F2876 #7F5C28 #287F30

split-complementary

#284B7F #7F3028 #767F28

monochromatic

#0B1422 #193050 #284B7F #3766AE #5785CA

Accessibility & contrast

On white

8.74

#284B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#284B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B7F

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B7F	#FFFFFF	#000000	##FFFFFF
##284B7F	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344F81

Deuteranopia (green-blind)

#27477E

Tritanopia (blue-blind)

#00575F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284b7f;
/* rgb */ color: rgb(40, 75, 127);
/* oklch */ color: oklch(41.4% 0.096 258.2);

Tailwind

colors: {
  custom: {
    50: '#6c7ca4',
    500: '#284b7f',
    950: '#000000',
  },
}

SCSS

$custom: #284b7f;
$custom-light: #6c7ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#284b7f",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 127
  },
  "hsl": {
    "h": 215.862,
    "s": 52.096,
    "l": 32.745
  },
  "oklch": {
    "l": 0.41395,
    "c": 0.09644,
    "h": 258.2
  },
  "luminance": 0.07016
}

Semantic roles & 50–950 ramp

primary

#284B7F

secondary

#AF8A54

accent

#A24CDC

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #284B7F

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

Preview Lab → · Contrast checker → · Palette generator →