#175ABA
Closest named color: Mid Blue (#276AB3). oklch(48.5% 0.165 258.7), rgb(23, 90, 186).
Aa
White text reads best on this color (6.54:1).
About this color
#175ABA is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.165 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.049 away. White text reads best on it, at 6.54:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.20:1 |
| White text | 6.54:1 |
Values
| HEX | #175ABA |
| RGB | rgb(23, 90, 186) |
| HSL | hsl(215, 78%, 41%) |
| OKLCH | oklch(48.5% 0.165 258.7) |
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 #175ABA | 6.54:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #175ABA | 3.20:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #175ABA text on white | 6.54:1 | AA | Lc 81.8 | Fine for body text |
| #175ABA text on black | 3.20:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DBF7
oklch(88.6% 0.044 258)
-
Step 300
300
#A1C2F5
oklch(80.8% 0.081 259)
-
Step 400
400
#6EA1F0
oklch(70.7% 0.129 258.9)
-
Step 500
500
#4787EA
oklch(63% 0.163 258.9)
-
Step 600
600
#276FD9
oklch(55.7% 0.178 258.7)
-
Step 700
700 (this color)
#175ABA
oklch(48.5% 0.165 258.7)
-
Step 800
800
#184C98
oklch(42.8% 0.136 258.6)
-
Step 900
900
#1A4079
oklch(37.7% 0.106 258.6)
-
Step 950
950
#102647
oklch(27% 0.068 258.4)
#175ABA 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) | #1765BD | 0.030 |
| Deuteranopia (no green cones) | #0057B8 | 0.013 |
| Tritanopia (no blue cones) | #007281 | 0.127 |
| Achromatopsia (no color) | #5D5D5D | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175ABA
#175ABA
oklch(48.5% 0.165 258.7)
- #7D5700
#7D5700
oklch(48.5% 0.101 79.2)
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 #175ABA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.049
- Blue Blue #2242C7 ΔE 0.060
- French Blue #436BAD ΔE 0.068
- Denim Blue #3B5B92 ΔE 0.069
- Warm Blue #4B57DB ΔE 0.071
- Dusk Blue #26538D ΔE 0.072
- Peacock Blue #016795 ΔE 0.075
- Dusky Blue #475F94 ΔE 0.076
Use #175ABA 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.