#174FDA
Closest named color: Blue Blue (#2242C7). oklch(49% 0.22 263.6), rgb(23, 79, 218).
Aa
White text reads best on this color (6.63:1).
About this color
#174FDA is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.220 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.041 away. White text reads best on it, at 6.63:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.220) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.16:1 |
| White text | 6.63:1 |
Values
| HEX | #174FDA |
| RGB | rgb(23, 79, 218) |
| HSL | hsl(223, 81%, 47%) |
| OKLCH | oklch(49% 0.22 263.6) |
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 #174FDA | 6.63:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #174FDA | 3.16:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #174FDA text on white | 6.63:1 | AA | Lc 81.8 | Fine for body text |
| #174FDA text on black | 3.16:1 | AA large text | Lc -20.1 | 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 700.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEAFF
oklch(93.5% 0.031 263.5)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4881FF
oklch(63.2% 0.197 263.5)
-
Step 600
600
#2362FA
oklch(55.7% 0.235 263.5)
-
Step 700
700 (this color)
#174FDA
oklch(49% 0.22 263.6)
-
Step 800
800
#1542B0
oklch(42.7% 0.182 263.6)
-
Step 900
900
#173A8B
oklch(37.7% 0.141 263.5)
-
Step 950
950
#0E2351
oklch(27% 0.089 263.2)
#174FDA 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) | #0066DE | 0.053 |
| Deuteranopia (no green cones) | #0054D7 | 0.013 |
| Tritanopia (no blue cones) | #00748D | 0.167 |
| Achromatopsia (no color) | #5D5D5D | 0.220 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174FDA
#174FDA
oklch(49% 0.22 263.6)
- #7C5A00
#7C5A00
oklch(49% 0.101 82.9)
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 #174FDA, closest first.
No curated palette has a color within ΔE 0.04 of #174FDA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.041
- Azul #1D5DEC ΔE 0.044
- Warm Blue #4B57DB ΔE 0.055
- Electric Blue #0652FF ΔE 0.057
- Vibrant Blue #0339F8 ΔE 0.059
- Majorelle Blue #3F37C9 ΔE 0.061
- Neon Blue #4361EE ΔE 0.069
- Bright Blue #0165FC ΔE 0.072
Use #174FDA 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.