#164F74
Closest named color: Deep Sea Blue (#015482). oklch(41% 0.084 242), rgb(22, 79, 116).
Aa
White text reads best on this color (8.73:1).
About this color
#164F74 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.084 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.025 away. White text reads best on it, at 8.73:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.40:1 |
| White text | 8.73:1 |
Values
| HEX | #164F74 |
| RGB | rgb(22, 79, 116) |
| HSL | hsl(204, 68%, 27%) |
| OKLCH | oklch(41% 0.084 242) |
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 #164F74 | 8.73:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #164F74 | 2.40:1 | Fails | Lc 14.4 | Not readable |
| #164F74 text on white | 8.73:1 | AAA | Lc 89.6 | Fine for body text |
| #164F74 text on black | 2.40:1 | Fails | Lc -12.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEA
oklch(88.5% 0.027 241.2)
-
Step 300
300
#A5C5DE
oklch(80.8% 0.049 241.8)
-
Step 400
400
#74A7CE
oklch(70.7% 0.079 242.1)
-
Step 500
500
#4D90C1
oklch(63% 0.101 242.4)
-
Step 600
600
#2C7AAE
oklch(55.6% 0.11 242.1)
-
Step 700
700
#1E6695
oklch(49% 0.102 242.3)
-
Step 800
800 (this color)
#164F74
oklch(41% 0.084 242)
-
Step 900
900
#1E4561
oklch(37.6% 0.065 242.5)
-
Step 950
950
#122939
oklch(27% 0.042 241)
#164F74 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) | #3E5076 | 0.041 |
| Deuteranopia (no green cones) | #314773 | 0.032 |
| Tritanopia (no blue cones) | #00585C | 0.058 |
| Achromatopsia (no color) | #4B4B4B | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #164F74
#164F74
oklch(41% 0.084 242)
- #6A3E10
#6A3E10
oklch(40.9% 0.084 61.8)
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 #164F74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.025
- Light Navy #155084 ΔE 0.027
- Twilight Blue #0A437A ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.045
- Dusk Blue #26538D ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.051
- Cobalt #1E488F ΔE 0.054
- Deep Teal #00555A ΔE 0.055
Use #164F74 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.