#2D308B#2D308B

#2D308B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.9% C 0.148 H 275.0°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#2D308B
RGB	rgb(45, 48, 139)
HSL	hsl(238, 51%, 36%)
HSV	hsv(238, 68%, 55%)
CMYK	cmyk(67.6%, 65.5%, 0%, 45.5%)
CIE-LAB	lab(25.37, 29.24, -51.04)
CIE-LCH	lch(25.37, 58.82, 299.80°)
OKLab	oklab(36.85% 0.0128 -0.1472)
OKLCH	oklch(36.85% 0.148 275)
XYZ	xyz(6.7978, 4.5353, 24.9383)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D308B #8B882D

analogous

#2D5F8B #2D308B #592D8B

triadic

#2D308B #8B2D30 #308B2D

tetradic

#2D308B #8B2D5F #8B882D #2D8B59

square

#2D308B #8B2D5F #8B882D #2D8B59

split-complementary

#2D308B #8B592D #5F8B2D

monochromatic

#0F102F #1E205D #2D308B #3C40B9 #6569CD

Accessibility & contrast

On white

11.01

#2D308B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#2D308B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D308B

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D308B	#FFFFFF	#000000	##FFFFFF
##2D308B	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408E

Deuteranopia (green-blind)

#003889

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2d308b;
/* rgb */ color: rgb(45, 48, 139);
/* oklch */ color: oklch(36.9% 0.148 275.0);

Tailwind

colors: {
  custom: {
    50: '#7268ae',
    500: '#2d308b',
    950: '#000000',
  },
}

SCSS

$custom: #2d308b;
$custom-light: #7268ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2d308b",
  "rgb": {
    "r": 45,
    "g": 48,
    "b": 139
  },
  "hsl": {
    "h": 238.085,
    "s": 51.087,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36854,
    "c": 0.14777,
    "h": 275
  },
  "luminance": 0.04536
}

Semantic roles & 50–950 ramp

primary

#2D308B

secondary

#B4B160

accent

#D64DDB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2D308B

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

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