#2F5DD9
Closest named color: Warm Blue (#4B57DB). oklch(52.3% 0.197 264.8), rgb(47, 93, 217).
Aa
White text reads best on this color (5.69:1).
About this color
#2F5DD9 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.197 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.030 away. White text reads best on it, at 5.69:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #2F5DD9 |
| RGB | rgb(47, 93, 217) |
| HSL | hsl(224, 69%, 52%) |
| OKLCH | oklch(52.3% 0.197 264.8) |
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 #2F5DD9 | 5.69:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #2F5DD9 | 3.68:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #2F5DD9 text on white | 5.69:1 | AA | Lc 77.9 | Fine for body text |
| #2F5DD9 text on black | 3.68:1 | AA large text | Lc -23.9 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8D9FD
oklch(88.4% 0.053 265.3)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#719DFF
oklch(70.8% 0.152 264.6)
-
Step 500
500
#4D80FD
oklch(63.1% 0.194 264.7)
-
Step 600
600
#3365ED
oklch(55.6% 0.212 264.8)
-
Step 700
700 (this color)
#2F5DD9
oklch(52.3% 0.197 264.8)
-
Step 800
800
#2145A7
oklch(42.8% 0.163 264.8)
-
Step 900
900
#1F3B84
oklch(37.7% 0.128 265)
-
Step 950
950
#12234D
oklch(26.9% 0.081 264.9)
#2F5DD9 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) | #006FDD | 0.044 |
| Deuteranopia (no green cones) | #005FD7 | 0.022 |
| Tritanopia (no blue cones) | #007C92 | 0.153 |
| Achromatopsia (no color) | #676767 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5DD9
#2F5DD9
oklch(52.3% 0.197 264.8)
- #866400
#866400
oklch(52.4% 0.107 85.2)
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 #2F5DD9, closest first.
No curated palette has a color within ΔE 0.04 of #2F5DD9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.030
- Azul #1D5DEC ΔE 0.031
- Royal Blue #4169E1 ΔE 0.038
- Neon Blue #4361EE ΔE 0.040
- Cerulean Blue #056EEE ΔE 0.050
- Bright Blue #0165FC ΔE 0.057
- Electric Blue #0652FF ΔE 0.066
- Iris #6258C4 ΔE 0.068
Use #2F5DD9 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.