#2664A4
Closest named color: Mid Blue (#276AB3). oklch(49.6% 0.12 252.2), rgb(38, 100, 164).
Aa
White text reads best on this color (6.10:1).
About this color
#2664A4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.120 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.027 away. White text reads best on it, at 6.10:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #2664A4 |
| RGB | rgb(38, 100, 164) |
| HSL | hsl(210, 62%, 40%) |
| OKLCH | oklch(49.6% 0.12 252.2) |
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 #2664A4 | 6.10:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #2664A4 | 3.44:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #2664A4 text on white | 6.10:1 | AA | Lc 80.1 | Fine for body text |
| #2664A4 text on black | 3.44:1 | AA large text | Lc -21.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A6C4E6
oklch(81% 0.058 251.8)
-
Step 400
400
#75A4D9
oklch(70.6% 0.093 252.1)
-
Step 500
500
#508DCF
oklch(63.1% 0.119 251.9)
-
Step 600
600
#3276BC
oklch(55.7% 0.129 251.8)
-
Step 700
700 (this color)
#2664A4
oklch(49.6% 0.12 252.2)
-
Step 800
800
#205183
oklch(42.8% 0.098 251.6)
-
Step 900
900
#204369
oklch(37.6% 0.077 252.2)
-
Step 950
950
#13283E
oklch(27.1% 0.049 251.1)
#2664A4 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) | #4668A7 | 0.034 |
| Deuteranopia (no green cones) | #325DA3 | 0.020 |
| Tritanopia (no blue cones) | #00737C | 0.090 |
| Achromatopsia (no color) | #626262 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2664A4
#2664A4
oklch(49.6% 0.12 252.2)
- #875600
#875600
oklch(49.6% 0.106 71.5)
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 #2664A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.027
- Peacock Blue #016795 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.036
- French Blue #436BAD ΔE 0.038
- Dusky Blue #475F94 ΔE 0.038
- Denim #3B638C ΔE 0.041
- Ocean Blue #03719C ΔE 0.043
- Muted Blue #3B719F ΔE 0.047
Use #2664A4 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.