#334FC5
Closest named color: Blue Blue (#2242C7). oklch(48.1% 0.186 268.2), rgb(51, 79, 197).
Aa
White text reads best on this color (6.85:1).
About this color
#334FC5 is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.186 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.037 away. White text reads best on it, at 6.85:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.186) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.06:1 |
| White text | 6.85:1 |
Values
| HEX | #334FC5 |
| RGB | rgb(51, 79, 197) |
| HSL | hsl(228, 59%, 49%) |
| OKLCH | oklch(48.1% 0.186 268.2) |
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 #334FC5 | 6.85:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #334FC5 | 3.06:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #334FC5 text on white | 6.85:1 | AA | Lc 83.1 | Fine for body text |
| #334FC5 text on black | 3.06:1 | AA large text | Lc -18.8 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CBD9FB
oklch(88.6% 0.049 267.7)
-
Step 300
300
#A8BFFC
oklch(80.9% 0.09 268.4)
-
Step 400
400
#7A9BFA
oklch(70.6% 0.144 268.1)
-
Step 500
500
#5B7FF8
oklch(63.2% 0.185 268.3)
-
Step 600
600
#4364E6
oklch(55.5% 0.2 268.3)
-
Step 700
700 (this color)
#334FC5
oklch(48.1% 0.186 268.2)
-
Step 800
800
#2C44A2
oklch(42.7% 0.155 268.2)
-
Step 900
900
#273B80
oklch(37.7% 0.119 268.1)
-
Step 950
950
#17234B
oklch(27% 0.076 268.4)
#334FC5 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) | #0061C9 | 0.046 |
| Deuteranopia (no green cones) | #0054C3 | 0.029 |
| Tritanopia (no blue cones) | #006D82 | 0.148 |
| Achromatopsia (no color) | #5A5A5A | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334FC5
#334FC5
oklch(48.1% 0.186 268.2)
- #755A00
#755A00
oklch(48.2% 0.098 88.3)
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 #334FC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.037
- Majorelle Blue #3F37C9 ΔE 0.049
- Warm Blue #4B57DB ΔE 0.051
- Blue With A Hint Of Purple #533CC6 ΔE 0.053
- Blurple #5539CC ΔE 0.059
- Azul #1D5DEC ΔE 0.068
- Bluey Purple #6241C7 ΔE 0.068
- Iris #6258C4 ΔE 0.069
Use #334FC5 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.