#174EB0
Closest named color: Blue Blue (#2242C7). oklch(45.1% 0.167 261.1), rgb(23, 78, 176).
Aa
White text reads best on this color (7.62:1).
About this color
#174EB0 is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.167 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.045 away. White text reads best on it, at 7.62:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #174EB0 |
| RGB | rgb(23, 78, 176) |
| HSL | hsl(218, 77%, 39%) |
| OKLCH | oklch(45.1% 0.167 261.1) |
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 #174EB0 | 7.62:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #174EB0 | 2.75:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #174EB0 text on white | 7.62:1 | AAA | Lc 85.9 | Fine for body text |
| #174EB0 text on black | 2.75:1 | Fails | Lc -16.2 | 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 800.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C5DAFE
oklch(88.4% 0.055 261.2)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#689FFF
oklch(70.7% 0.153 260.8)
-
Step 500
500
#3D82FF
oklch(63% 0.199 261.1)
-
Step 600
600
#1B68EF
oklch(55.7% 0.216 261.1)
-
Step 700
700
#0C55D0
oklch(49.1% 0.201 261)
-
Step 800
800 (this color)
#174EB0
oklch(45.1% 0.167 261.1)
-
Step 900
900
#143D85
oklch(37.8% 0.129 260.8)
-
Step 950
950
#0D244E
oklch(27% 0.083 261.2)
#174EB0 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) | #005BB3 | 0.033 |
| Deuteranopia (no green cones) | #004DAE | 0.011 |
| Tritanopia (no blue cones) | #006777 | 0.129 |
| Achromatopsia (no color) | #545454 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174EB0
#174EB0
oklch(45.1% 0.167 261.1)
- #704F00
#704F00
oklch(45.2% 0.093 80.8)
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 #174EB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.045
- Sapphire #2138AB ΔE 0.052
- Cobalt #1E488F ΔE 0.055
- Dusk Blue #26538D ΔE 0.061
- Blueberry #464196 ΔE 0.066
- Majorelle Blue #3F37C9 ΔE 0.069
- Denim Blue #3B5B92 ΔE 0.073
- Light Navy #155084 ΔE 0.073
Use #174EB0 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.