#2B64C4
Closest named color: Mid Blue (#276AB3). oklch(52% 0.162 260.2), rgb(43, 100, 196).
Aa
White text reads best on this color (5.64:1).
About this color
#2B64C4 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.162 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.033 away. White text reads best on it, at 5.64:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.72:1 |
| White text | 5.64:1 |
Values
| HEX | #2B64C4 |
| RGB | rgb(43, 100, 196) |
| HSL | hsl(218, 64%, 47%) |
| OKLCH | oklch(52% 0.162 260.2) |
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 #2B64C4 | 5.64:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #2B64C4 | 3.72:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #2B64C4 text on white | 5.64:1 | AA | Lc 77.7 | Fine for body text |
| #2B64C4 text on black | 3.72:1 | AA large text | Lc -24.0 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAF9
oklch(93.5% 0.023 260.7)
-
Step 200
200
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A4C2F4
oklch(81% 0.078 260.5)
-
Step 400
400
#72A1EE
oklch(70.8% 0.124 259.9)
-
Step 500
500
#4D87E9
oklch(63.2% 0.16 260.2)
-
Step 600
600
#306ED7
oklch(55.6% 0.174 260.3)
-
Step 700
700 (this color)
#2B64C4
oklch(52% 0.162 260.2)
-
Step 800
800
#1E4B97
oklch(42.7% 0.134 260.3)
-
Step 900
900
#1E3F78
oklch(37.6% 0.105 260.5)
-
Step 950
950
#122646
oklch(27.1% 0.065 259.4)
#2B64C4 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) | #2C6FC8 | 0.030 |
| Deuteranopia (no green cones) | #0061C2 | 0.022 |
| Tritanopia (no blue cones) | #007B8A | 0.126 |
| Achromatopsia (no color) | #676767 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B64C4
#2B64C4
oklch(52% 0.162 260.2)
- #896100
#896100
oklch(52.1% 0.108 80.4)
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 #2B64C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.033
- French Blue #436BAD ΔE 0.049
- Royal Blue #4169E1 ΔE 0.052
- Warm Blue #4B57DB ΔE 0.056
- Windows Blue #3778BF ΔE 0.059
- Azul #1D5DEC ΔE 0.065
- Iris #6258C4 ΔE 0.066
- Cerulean Blue #056EEE ΔE 0.067
Use #2B64C4 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.