#175BAD
Closest named color: Mid Blue (#276AB3). oklch(47.8% 0.147 256.1), rgb(23, 91, 173).
Aa
White text reads best on this color (6.69:1).
About this color
#175BAD is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.147 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.045 away. White text reads best on it, at 6.69:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #175BAD |
| RGB | rgb(23, 91, 173) |
| HSL | hsl(213, 77%, 38%) |
| OKLCH | oklch(47.8% 0.147 256.1) |
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 #175BAD | 6.69:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #175BAD | 3.13:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #175BAD text on white | 6.69:1 | AA | Lc 82.5 | Fine for body text |
| #175BAD text on black | 3.13:1 | AA large text | Lc -19.4 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DBF4
oklch(88.6% 0.04 256.6)
-
Step 300
300
#A3C3EF
oklch(80.9% 0.072 256.4)
-
Step 400
400
#70A3E6
oklch(70.7% 0.113 255.6)
-
Step 500
500
#498ADF
oklch(63.1% 0.145 256)
-
Step 600
600
#2A72CD
oklch(55.6% 0.158 256.2)
-
Step 700
700 (this color)
#175BAD
oklch(47.8% 0.147 256.1)
-
Step 800
800
#1A4E90
oklch(42.7% 0.122 256.3)
-
Step 900
900
#1C4173
oklch(37.6% 0.096 256.8)
-
Step 950
950
#112743
oklch(27.1% 0.059 255.4)
#175BAD 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) | #2D63B0 | 0.029 |
| Deuteranopia (no green cones) | #0056AB | 0.018 |
| Tritanopia (no blue cones) | #006F7B | 0.112 |
| Achromatopsia (no color) | #5C5C5C | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175BAD
#175BAD
oklch(47.8% 0.147 256.1)
- #7D5400
#7D5400
oklch(47.9% 0.1 76.2)
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 #175BAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.051
- Dusk Blue #26538D ΔE 0.053
- Peacock Blue #016795 ΔE 0.057
- Dusky Blue #475F94 ΔE 0.060
- Light Navy Blue #2E5A88 ΔE 0.061
- French Blue #436BAD ΔE 0.062
- Cobalt #1E488F ΔE 0.067
Use #175BAD 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.