#174BDD
Closest named color: Blue Blue (#2242C7). oklch(48.6% 0.228 264.1), rgb(23, 75, 221).
Aa
White text reads best on this color (6.80:1).
About this color
#174BDD is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.228 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.040 away. White text reads best on it, at 6.80:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.228) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.08:1 |
| White text | 6.80:1 |
Values
| HEX | #174BDD |
| RGB | rgb(23, 75, 221) |
| HSL | hsl(224, 81%, 48%) |
| OKLCH | oklch(48.6% 0.228 264.1) |
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 #174BDD | 6.80:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #174BDD | 3.08:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #174BDD text on white | 6.80:1 | AA | Lc 82.4 | Fine for body text |
| #174BDD text on black | 3.08:1 | AA large text | Lc -19.5 | 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
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7DAFF
oklch(88.6% 0.055 263.7)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#245FFF
oklch(55.6% 0.245 264.2)
-
Step 700
700 (this color)
#174BDD
oklch(48.6% 0.228 264.1)
-
Step 800
800
#1640B4
oklch(42.7% 0.189 264.3)
-
Step 900
900
#17398E
oklch(37.8% 0.147 264)
-
Step 950
950
#0E2253
oklch(26.9% 0.093 264.3)
#174BDD 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) | #0064E2 | 0.056 |
| Deuteranopia (no green cones) | #0052DA | 0.015 |
| Tritanopia (no blue cones) | #00738D | 0.174 |
| Achromatopsia (no color) | #5B5B5B | 0.228 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174BDD
#174BDD
oklch(48.6% 0.228 264.1)
- #7A5900
#7A5900
oklch(48.6% 0.1 83.4)
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 #174BDD, closest first.
No curated palette has a color within ΔE 0.04 of #174BDD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.040
- Azul #1D5DEC ΔE 0.048
- Vibrant Blue #0339F8 ΔE 0.051
- Electric Blue #0652FF ΔE 0.055
- Majorelle Blue #3F37C9 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.060
- Vivid Blue #152EFF ΔE 0.065
- Light Royal Blue #3A2EFE ΔE 0.065
Use #174BDD 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.