#2F5FD5
Closest named color: Warm Blue (#4B57DB). oklch(52.4% 0.189 264.1), rgb(47, 95, 213).
Aa
White text reads best on this color (5.64:1).
About this color
#2F5FD5 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.189 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.033 away. White text reads best on it, at 5.64:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.71:1 |
| White text | 5.64:1 |
Values
| HEX | #2F5FD5 |
| RGB | rgb(47, 95, 213) |
| HSL | hsl(223, 66%, 51%) |
| OKLCH | oklch(52.4% 0.189 264.1) |
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 #2F5FD5 | 5.64:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #2F5FD5 | 3.71:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #2F5FD5 text on white | 5.64:1 | AA | Lc 77.7 | Fine for body text |
| #2F5FD5 text on black | 3.71:1 | AA large text | Lc -24.1 | 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 600.
-
Step 50
50
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A5C1F9
oklch(81% 0.085 263.9)
-
Step 400
400
#759EF5
oklch(70.7% 0.136 264.1)
-
Step 500
500
#5283F2
oklch(63.2% 0.175 264.1)
-
Step 600
600 (this color)
#2F5FD5
oklch(52.4% 0.189 264.1)
-
Step 700
700
#2B57C3
oklch(49.2% 0.176 264.2)
-
Step 800
800
#24489D
oklch(42.7% 0.145 264)
-
Step 900
900
#223D7D
oklch(37.7% 0.114 264.4)
-
Step 950
950
#142449
oklch(26.9% 0.072 264.5)
#2F5FD5 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) | #006FD9 | 0.041 |
| Deuteranopia (no green cones) | #0060D3 | 0.022 |
| Tritanopia (no blue cones) | #007C91 | 0.147 |
| Achromatopsia (no color) | #676767 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5FD5
#2F5FD5
oklch(52.4% 0.189 264.1)
- #876300
#876300
oklch(52.3% 0.107 83.6)
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 #2F5FD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.033
- Royal Blue #4169E1 ΔE 0.037
- Azul #1D5DEC ΔE 0.037
- Neon Blue #4361EE ΔE 0.044
- Cerulean Blue #056EEE ΔE 0.051
- Bright Blue #0165FC ΔE 0.062
- Mid Blue #276AB3 ΔE 0.064
- Iris #6258C4 ΔE 0.065
Use #2F5FD5 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.