#303993
Closest named color: Blueberry (#464196). oklch(39.5% 0.147 273.3), rgb(48, 57, 147).
Aa
White text reads best on this color (9.84:1).
About this color
#303993 is a dark, vivid blue. In OKLCH its lightness is 39%, its chroma 0.147 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.041 away. White text reads best on it, at 9.84:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.13:1 |
| White text | 9.84:1 |
Values
| HEX | #303993 |
| RGB | rgb(48, 57, 147) |
| HSL | hsl(235, 51%, 38%) |
| OKLCH | oklch(39.5% 0.147 273.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #303993 | 9.84:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #303993 | 2.13:1 | Fails | Lc 11.5 | Not readable |
| #303993 text on white | 9.84:1 | AAA | Lc 92.4 | Preferred for body text |
| #303993 text on black | 2.13:1 | Fails | Lc -10.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FF
oklch(93.6% 0.03 273.6)
-
Step 200
200
#CDD7FF
oklch(88.4% 0.056 274.2)
-
Step 300
300
#ACBDFF
oklch(80.9% 0.095 273)
-
Step 400
400
#8297FF
oklch(70.6% 0.154 273.2)
-
Step 500
500
#6679FF
oklch(63.1% 0.198 273.3)
-
Step 600
600
#4E55FE
oklch(55.5% 0.245 273.3)
-
Step 700
700
#4044DE
oklch(49.2% 0.227 273.2)
-
Step 800
800
#3439B3
oklch(42.6% 0.188 273.3)
-
Step 900
900 (this color)
#303993
oklch(39.5% 0.147 273.3)
-
Step 950
950
#191F53
oklch(26.9% 0.094 273.3)
#303993 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #004896 | 0.047 |
| Deuteranopia (no green cones) | #003F91 | 0.038 |
| Tritanopia (no blue cones) | #004F60 | 0.120 |
| Achromatopsia (no color) | #434343 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #303993
#303993
oklch(39.5% 0.147 273.3)
- #554500
#554500
oklch(39.6% 0.081 93.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #303993, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.041
- Cobalt #1E488F ΔE 0.042
- Dark Slate Blue #483D8B ΔE 0.042
- Sapphire #2138AB ΔE 0.043
- Twilight Blue #0A437A ΔE 0.060
- Indigo Blue #3A18B1 ΔE 0.071
- Light Navy #155084 ΔE 0.071
- Dusk Blue #26538D ΔE 0.072
Use #303993 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.