#2664BE
Closest named color: Mid Blue (#276AB3). oklch(51.4% 0.155 258.3), rgb(38, 100, 190).
Aa
White text reads best on this color (5.75:1).
About this color
#2664BE is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.155 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.026 away. White text reads best on it, at 5.75:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.64:1 |
| White text | 5.75:1 |
Values
| HEX | #2664BE |
| RGB | rgb(38, 100, 190) |
| HSL | hsl(216, 67%, 45%) |
| OKLCH | oklch(51.4% 0.155 258.3) |
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 #2664BE | 5.75:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #2664BE | 3.64:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #2664BE text on white | 5.75:1 | AA | Lc 78.3 | Fine for body text |
| #2664BE text on black | 3.64:1 | AA large text | Lc -23.5 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C9DBF5
oklch(88.6% 0.041 257.5)
-
Step 300
300
#A3C2F1
oklch(80.8% 0.075 258.6)
-
Step 400
400
#71A2EB
oklch(70.8% 0.12 258.1)
-
Step 500
500
#4B88E5
oklch(63.1% 0.154 258.6)
-
Step 600
600
#2C70D3
oklch(55.6% 0.167 258.3)
-
Step 700
700 (this color)
#2664BE
oklch(51.4% 0.155 258.3)
-
Step 800
800
#1C4D94
oklch(42.9% 0.128 258.3)
-
Step 900
900
#1D4076
oklch(37.6% 0.101 258.9)
-
Step 950
950
#122645
oklch(27% 0.064 258.9)
#2664BE 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) | #326DC1 | 0.028 |
| Deuteranopia (no green cones) | #005FBC | 0.023 |
| Tritanopia (no blue cones) | #007A88 | 0.120 |
| Achromatopsia (no color) | #666666 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2664BE
#2664BE
oklch(51.4% 0.155 258.3)
- #885E00
#885E00
oklch(51.3% 0.107 78.3)
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 #2664BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.026
- French Blue #436BAD ΔE 0.045
- Windows Blue #3778BF ΔE 0.059
- Royal Blue #4169E1 ΔE 0.062
- Flat Blue #3C73A8 ΔE 0.063
- Warm Blue #4B57DB ΔE 0.065
- Nice Blue #107AB0 ΔE 0.069
- Muted Blue #3B719F ΔE 0.070
Use #2664BE 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.