#164699
Closest named color: Cobalt (#1E488F). oklch(41.5% 0.146 260.7), rgb(22, 70, 153).
Aa
White text reads best on this color (8.86:1).
About this color
#164699 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.146 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.019 away. White text reads best on it, at 8.86:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.37:1 |
| White text | 8.86:1 |
Values
| HEX | #164699 |
| RGB | rgb(22, 70, 153) |
| HSL | hsl(218, 75%, 34%) |
| OKLCH | oklch(41.5% 0.146 260.7) |
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 #164699 | 8.86:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #164699 | 2.37:1 | Fails | Lc 14.3 | Not readable |
| #164699 text on white | 8.86:1 | AAA | Lc 89.7 | Fine for body text |
| #164699 text on black | 2.37:1 | Fails | Lc -12.5 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAF9
oklch(88.5% 0.047 261.4)
-
Step 300
300
#A1C2F8
oklch(80.9% 0.085 260.1)
-
Step 400
400
#6EA0F5
oklch(70.7% 0.136 260.5)
-
Step 500
500
#4885F1
oklch(63.1% 0.174 260.9)
-
Step 600
600
#296CDF
oklch(55.6% 0.188 260.5)
-
Step 700
700
#1C59C2
oklch(49% 0.176 260.7)
-
Step 800
800 (this color)
#164699
oklch(41.5% 0.146 260.7)
-
Step 900
900
#1B3F7D
oklch(37.8% 0.113 260.5)
-
Step 950
950
#112549
oklch(27% 0.072 261.1)
#164699 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) | #01509C | 0.027 |
| Deuteranopia (no green cones) | #004497 | 0.013 |
| Tritanopia (no blue cones) | #005A68 | 0.111 |
| Achromatopsia (no color) | #4A4A4A | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #164699
#164699
oklch(41.5% 0.146 260.7)
- #634600
#634600
oklch(41.5% 0.086 81.5)
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 #164699, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.019
- Sapphire #2138AB ΔE 0.044
- Dusk Blue #26538D ΔE 0.047
- Light Navy #155084 ΔE 0.048
- Twilight Blue #0A437A ΔE 0.053
- Blueberry #464196 ΔE 0.054
- Deep Sea Blue #015482 ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.063
Use #164699 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.