#2D4FCC
Closest named color: Blue Blue (#2242C7). oklch(48.4% 0.197 266.8), rgb(45, 79, 204).
Aa
White text reads best on this color (6.77:1).
About this color
#2D4FCC is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.197 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.034 away. White text reads best on it, at 6.77:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.10:1 |
| White text | 6.77:1 |
Values
| HEX | #2D4FCC |
| RGB | rgb(45, 79, 204) |
| HSL | hsl(227, 64%, 49%) |
| OKLCH | oklch(48.4% 0.197 266.8) |
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 #2D4FCC | 6.77:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #2D4FCC | 3.10:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #2D4FCC text on white | 6.77:1 | AA | Lc 82.7 | Fine for body text |
| #2D4FCC text on black | 3.10:1 | AA large text | Lc -19.2 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FD
oklch(88.5% 0.053 266.4)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#759BFF
oklch(70.6% 0.153 266.8)
-
Step 500
500
#547EFE
oklch(63.1% 0.196 267)
-
Step 600
600
#3B63ED
oklch(55.5% 0.213 266.8)
-
Step 700
700 (this color)
#2D4FCC
oklch(48.4% 0.197 266.8)
-
Step 800
800
#2743A7
oklch(42.7% 0.164 267)
-
Step 900
900
#233A84
oklch(37.6% 0.128 267)
-
Step 950
950
#14234D
oklch(27% 0.08 266.3)
#2D4FCC 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) | #0063D0 | 0.048 |
| Deuteranopia (no green cones) | #0054CA | 0.024 |
| Tritanopia (no blue cones) | #006F86 | 0.153 |
| Achromatopsia (no color) | #5B5B5B | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4FCC
#2D4FCC
oklch(48.4% 0.197 266.8)
- #775A00
#775A00
oklch(48.4% 0.099 86.7)
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 #2D4FCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.034
- Warm Blue #4B57DB ΔE 0.048
- Majorelle Blue #3F37C9 ΔE 0.050
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Azul #1D5DEC ΔE 0.058
- Blurple #5539CC ΔE 0.062
- Bluey Purple #6241C7 ΔE 0.074
- Neon Blue #4361EE ΔE 0.074
Use #2D4FCC 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.