#10233E#10233E

#10233E is a dark, muted blue. Relative luminance 0.017; OKLCH L 25.6% C 0.057 H 257.4°. Best body text is #FFFFFF at 15.77:1 contrast (WCAG AA passes).

Color values

HEX	#10233E
RGB	rgb(16, 35, 62)
HSL	hsl(215, 59%, 15%)
HSV	hsv(215, 74%, 24%)
CMYK	cmyk(74.2%, 43.5%, 0%, 75.7%)
CIE-LAB	lab(13.59, 2.80, -19.58)
CIE-LCH	lch(13.59, 19.77, 278.14°)
OKLab	oklab(25.58% -0.0124 -0.0556)
OKLCH	oklch(25.58% 0.057 257.4)
XYZ	xyz(1.6839, 1.6599, 4.7881)
Luminance	0.0166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10233E #3E2B10

analogous

#103A3E #10233E #14103E

triadic

#10233E #3E1023 #233E10

tetradic

#10233E #3E103A #3E2B10 #103E14

square

#10233E #3E103A #3E2B10 #103E14

split-complementary

#10233E #3E1410 #3A3E10

monochromatic

#060E18 #060E18 #10233E #1D3E6F #295A9F

Accessibility & contrast

On white

15.77

#10233E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#10233E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10233E

15.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10233E	#FFFFFF	#000000	##FFFFFF
##10233E	1.00	15.77	1.33	15.77
#FFFFFF	15.77	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17253F

Deuteranopia (green-blind)

#10213D

Tritanopia (blue-blind)

#00292D

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #10233e;
/* rgb */ color: rgb(16, 35, 62);
/* oklch */ color: oklch(25.6% 0.057 257.4);

Tailwind

colors: {
  custom: {
    50: '#545d73',
    500: '#10233e',
    950: '#000000',
  },
}

SCSS

$custom: #10233e;
$custom-light: #545d73;
$custom-dark: #000000;

JSON

{
  "hex": "#10233e",
  "rgb": {
    "r": 16,
    "g": 35,
    "b": 62
  },
  "hsl": {
    "h": 215.217,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.2558,
    "c": 0.05701,
    "h": 257.4
  },
  "luminance": 0.0166
}

Semantic roles & 50–950 ramp

primary

#10233E

secondary

#785B32

accent

#A246E2

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #10233E

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

Preview Lab → · Contrast checker → · Palette generator →