#3031FC
Closest named color: Light Royal Blue (#3A2EFE). oklch(49.1% 0.282 269.4), rgb(48, 49, 252).
Aa
White text reads best on this color (7.06:1).
About this color
#3031FC is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.282 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Light Royal Blue (#3A2EFE), ΔE 0.011 away. White text reads best on it, at 7.06:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.282) |
| Temperature | cool |
| Nearest name | Light Royal Blue (#3A2EFE) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #3031FC |
| RGB | rgb(48, 49, 252) |
| HSL | hsl(240, 97%, 59%) |
| OKLCH | oklch(49.1% 0.282 269.4) |
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 #3031FC | 7.06:1 | AAA | Lc -87.9 | Fine for body text |
| Black text on #3031FC | 2.97:1 | Fails | Lc 21.2 | Dividers and decoration only |
| #3031FC text on white | 7.06:1 | AAA | Lc 82.8 | Fine for body text |
| #3031FC text on black | 2.97:1 | Fails | Lc -19.1 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFF
oklch(93.7% 0.03 269.1)
-
Step 200
200
#CAD8FF
oklch(88.4% 0.056 269.7)
-
Step 300
300
#A8BEFF
oklch(80.9% 0.096 269.8)
-
Step 400
400
#7B9AFF
oklch(70.8% 0.152 269.4)
-
Step 500
500
#5B7CFF
oklch(63.1% 0.198 269.4)
-
Step 600
600
#4059FF
oklch(55.5% 0.245 269.5)
-
Step 700
700 (this color)
#3031FC
oklch(49.1% 0.282 269.4)
-
Step 800
800
#262DCB
oklch(42.6% 0.233 269.4)
-
Step 900
900
#202DA0
oklch(37.7% 0.183 269.4)
-
Step 950
950
#121D5D
oklch(27% 0.114 269.4)
#3031FC 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) | #0063FF | 0.086 |
| Deuteranopia (no green cones) | #004DF9 | 0.044 |
| Tritanopia (no blue cones) | #007399 | 0.214 |
| Achromatopsia (no color) | #585858 | 0.283 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3031FC
#3031FC
oklch(49.1% 0.282 269.4)
- #775D00
#775D00
oklch(49.1% 0.1 89.6)
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 #3031FC, closest first.
No curated palette has a color within ΔE 0.04 of #3031FC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Royal Blue #3A2EFE ΔE 0.011
- Vivid Blue #152EFF ΔE 0.024
- Vibrant Blue #0339F8 ΔE 0.027
- Rich Blue #021BF9 ΔE 0.047
- Electric Blue #0652FF ΔE 0.052
- Strong Blue #0C06F7 ΔE 0.055
- Primary Blue #0804F9 ΔE 0.056
- Blue #0000FF ΔE 0.057
Use #3031FC 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.