#2F4FCC
Closest named color: Blue Blue (#2242C7). oklch(48.5% 0.197 267.3), rgb(47, 79, 204).
Aa
White text reads best on this color (6.74:1).
About this color
#2F4FCC is a medium-dark, vivid blue. In OKLCH its lightness is 49%, 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 0.035 away. White text reads best on it, at 6.74:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #2F4FCC |
| RGB | rgb(47, 79, 204) |
| HSL | hsl(228, 63%, 49%) |
| OKLCH | oklch(48.5% 0.197 267.3) |
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 #2F4FCC | 6.74:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #2F4FCC | 3.11:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #2F4FCC text on white | 6.74:1 | AA | Lc 82.6 | Fine for body text |
| #2F4FCC text on black | 3.11:1 | AA large text | Lc -19.3 | 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
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CAD9FD
oklch(88.6% 0.052 267.4)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#769BFF
oklch(70.7% 0.152 267.2)
-
Step 500
500
#557EFD
oklch(63% 0.194 267.2)
-
Step 600
600
#3D63ED
oklch(55.6% 0.212 267.2)
-
Step 700
700 (this color)
#2F4FCC
oklch(48.5% 0.197 267.3)
-
Step 800
800
#2843A6
oklch(42.6% 0.163 267.3)
-
Step 900
900
#243A84
oklch(37.7% 0.127 267.4)
-
Step 950
950
#15234D
oklch(27% 0.08 267.1)
#2F4FCC 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 | 0.049 |
| Deuteranopia (no green cones) | #0054CA | 0.025 |
| Tritanopia (no blue cones) | #006F86 | 0.153 |
| Achromatopsia (no color) | #5B5B5B | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4FCC
#2F4FCC
oklch(48.5% 0.197 267.3)
- #775B00
#775B00
oklch(48.6% 0.099 87.7)
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 #2F4FCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.035
- Warm Blue #4B57DB ΔE 0.047
- Majorelle Blue #3F37C9 ΔE 0.049
- Blue With A Hint Of Purple #533CC6 ΔE 0.057
- Azul #1D5DEC ΔE 0.058
- Blurple #5539CC ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.072
- Neon Blue #4361EE ΔE 0.073
Use #2F4FCC 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.