#2F4FCD
Closest named color: Blue Blue (#2242C7). oklch(48.6% 0.198 267.3), rgb(47, 79, 205).
Aa
White text reads best on this color (6.72:1).
About this color
#2F4FCD is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.198 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 6.72:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.198) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.12:1 |
| White text | 6.72:1 |
Values
| HEX | #2F4FCD |
| RGB | rgb(47, 79, 205) |
| HSL | hsl(228, 63%, 49%) |
| OKLCH | oklch(48.6% 0.198 267.3) |
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 #2F4FCD | 6.72:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #2F4FCD | 3.12:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #2F4FCD text on white | 6.72:1 | AA | Lc 82.5 | Fine for body text |
| #2F4FCD text on black | 3.12:1 | AA large text | Lc -19.4 | 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
#C9D9FD
oklch(88.5% 0.053 266.4)
-
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
#557EFE
oklch(63.1% 0.196 267.2)
-
Step 600
600
#3D63ED
oklch(55.6% 0.212 267.2)
-
Step 700
700 (this color)
#2F4FCD
oklch(48.6% 0.198 267.3)
-
Step 800
800
#2843A7
oklch(42.7% 0.164 267.3)
-
Step 900
900
#243A84
oklch(37.7% 0.127 267.4)
-
Step 950
950
#15234D
oklch(27% 0.08 267.1)
#2F4FCD 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) | #0063D1 | 0.048 |
| Deuteranopia (no green cones) | #0054CB | 0.025 |
| Tritanopia (no blue cones) | #007086 | 0.156 |
| Achromatopsia (no color) | #5C5C5C | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4FCD
#2F4FCD
oklch(48.6% 0.198 267.3)
- #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 #2F4FCD, closest first.
No curated palette has a color within ΔE 0.04 of #2F4FCD.
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 0.046
- Majorelle Blue #3F37C9 ΔE 0.049
- Blue With A Hint Of Purple #533CC6 ΔE 0.057
- Azul #1D5DEC ΔE 0.057
- Blurple #5539CC ΔE 0.061
- Neon Blue #4361EE ΔE 0.072
- Bluey Purple #6241C7 ΔE 0.072
Use #2F4FCD 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.