#10438D#10438D

#10438D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.7% C 0.134 H 258.8°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#10438D
RGB	rgb(16, 67, 141)
HSL	hsl(216, 80%, 31%)
HSV	hsv(216, 89%, 55%)
CMYK	cmyk(88.7%, 52.5%, 0%, 44.7%)
CIE-LAB	lab(29.53, 13.60, -45.57)
CIE-LCH	lch(29.53, 47.55, 286.62°)
OKLab	oklab(39.68% -0.0261 -0.1314)
OKLCH	oklch(39.68% 0.134 258.8)
XYZ	xyz(7.0268, 6.0467, 25.9909)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10438D #8D5A10

analogous

#10818D #10438D #1B108D

triadic

#10438D #8D1043 #438D10

tetradic

#10438D #8D1081 #8D5A10 #108D1B

square

#10438D #8D1081 #8D5A10 #108D1B

split-complementary

#10438D #8D1B10 #818D10

monochromatic

#040F1F #0A2956 #10438D #165DC4 #307BE7

Accessibility & contrast

On white

9.50

#10438D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#10438D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10438D

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10438D	#FFFFFF	#000000	##FFFFFF
##10438D	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104B90

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #10438d;
/* rgb */ color: rgb(16, 67, 141);
/* oklch */ color: oklch(39.7% 0.134 258.8);

Tailwind

colors: {
  custom: {
    50: '#6876af',
    500: '#10438d',
    950: '#000000',
  },
}

SCSS

$custom: #10438d;
$custom-light: #6876af;
$custom-dark: #000000;

JSON

{
  "hex": "#10438d",
  "rgb": {
    "r": 16,
    "g": 67,
    "b": 141
  },
  "hsl": {
    "h": 215.52,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.39684,
    "c": 0.13393,
    "h": 258.8
  },
  "luminance": 0.06048
}

Semantic roles & 50–950 ramp

primary

#10438D

secondary

#C28937

accent

#A632F6

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #10438D

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

Preview Lab → · Contrast checker → · Palette generator →