#174AAC
Closest named color: Sapphire (#2138AB). oklch(44% 0.166 261.8), rgb(23, 74, 172).
Aa
White text reads best on this color (8.04:1).
About this color
#174AAC is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.166 and its hue 262°. 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 8.04:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.61:1 |
| White text | 8.04:1 |
Values
| HEX | #174AAC |
| RGB | rgb(23, 74, 172) |
| HSL | hsl(219, 76%, 38%) |
| OKLCH | oklch(44% 0.166 261.8) |
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 #174AAC | 8.04:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #174AAC | 2.61:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #174AAC text on white | 8.04:1 | AAA | Lc 87.2 | Fine for body text |
| #174AAC text on black | 2.61:1 | Fails | Lc -14.9 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C6DAFE
oklch(88.5% 0.054 262.2)
-
Step 300
300
#9FC1FF
oklch(80.9% 0.096 262.2)
-
Step 400
400
#6A9EFF
oklch(70.6% 0.153 261.9)
-
Step 500
500
#4182FF
oklch(63.1% 0.198 261.8)
-
Step 600
600
#2067EF
oklch(55.6% 0.217 261.8)
-
Step 700
700
#1355D0
oklch(49.2% 0.201 261.6)
-
Step 800
800 (this color)
#174AAC
oklch(44% 0.166 261.8)
-
Step 900
900
#173C85
oklch(37.6% 0.13 262)
-
Step 950
950
#0E244E
oklch(27% 0.082 261.8)
#174AAC 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) | #0057AF | 0.033 |
| Deuteranopia (no green cones) | #004AAA | 0.010 |
| Tritanopia (no blue cones) | #006373 | 0.129 |
| Achromatopsia (no color) | #505050 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174AAC
#174AAC
oklch(44% 0.166 261.8)
- #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 #174AAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.042
- Blue Blue #2242C7 ΔE 0.047
- Cobalt #1E488F ΔE 0.047
- Dusk Blue #26538D ΔE 0.060
- Blueberry #464196 ΔE 0.062
- Majorelle Blue #3F37C9 ΔE 0.069
- Light Navy #155084 ΔE 0.070
- Denim Blue #3B5B92 ΔE 0.077
Use #174AAC 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.