#164AAB
Closest named color: Sapphire (#2138AB). oklch(43.9% 0.165 261.5), rgb(22, 74, 171).
Aa
White text reads best on this color (8.07:1).
About this color
#164AAB is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.165 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.042 away. White text reads best on it, at 8.07:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.60:1 |
| White text | 8.07:1 |
Values
| HEX | #164AAB |
| RGB | rgb(22, 74, 171) |
| HSL | hsl(219, 77%, 38%) |
| OKLCH | oklch(43.9% 0.165 261.5) |
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 #164AAB | 8.07:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #164AAB | 2.60:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #164AAB text on white | 8.07:1 | AAA | Lc 87.3 | Fine for body text |
| #164AAB text on black | 2.60:1 | Fails | Lc -14.8 | Not readable |
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 800.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C6DAFD
oklch(88.5% 0.053 261.7)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#699EFF
oklch(70.6% 0.153 261.6)
-
Step 500
500
#4082FE
oklch(63% 0.197 261.6)
-
Step 600
600
#1F68EE
oklch(55.7% 0.214 261.4)
-
Step 700
700
#1255CF
oklch(49.1% 0.199 261.5)
-
Step 800
800 (this color)
#164AAB
oklch(43.9% 0.165 261.5)
-
Step 900
900
#163D84
oklch(37.8% 0.128 261.2)
-
Step 950
950
#0E244E
oklch(27% 0.082 261.8)
#164AAB 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) | #0057AE | 0.033 |
| Deuteranopia (no green cones) | #004AA9 | 0.010 |
| Tritanopia (no blue cones) | #006273 | 0.126 |
| Achromatopsia (no color) | #505050 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #164AAB
#164AAB
oklch(43.9% 0.165 261.5)
- #6B4C00
#6B4C00
oklch(43.9% 0.09 81.6)
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 #164AAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.042
- Cobalt #1E488F ΔE 0.046
- Blue Blue #2242C7 ΔE 0.048
- Dusk Blue #26538D ΔE 0.059
- Blueberry #464196 ΔE 0.061
- Light Navy #155084 ΔE 0.068
- Majorelle Blue #3F37C9 ΔE 0.070
- Denim Blue #3B5B92 ΔE 0.076
Use #164AAB 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.