#17214D
Closest named color: Oxford Blue (#1B263B). oklch(26.7% 0.082 270.3), rgb(23, 33, 77).
Aa
White text reads best on this color (15.42:1).
About this color
#17214D is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.082 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.040 away. White text reads best on it, at 15.42:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.42:1 |
Values
| HEX | #17214D |
| RGB | rgb(23, 33, 77) |
| HSL | hsl(229, 54%, 20%) |
| OKLCH | oklch(26.7% 0.082 270.3) |
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 #17214D | 15.42:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #17214D | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #17214D text on white | 15.42:1 | AAA | Lc 102.2 | Preferred for body text |
| #17214D text on black | 1.36:1 | Fails | Lc 0.0 | Not readable |
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 950.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FD
oklch(93.5% 0.028 270.4)
-
Step 200
200
#CBD8FE
oklch(88.5% 0.054 270.4)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7D99FF
oklch(70.7% 0.152 270.5)
-
Step 500
500
#5E7BFF
oklch(63.1% 0.198 270.4)
-
Step 600
600
#4760EF
oklch(55.7% 0.215 270.2)
-
Step 700
700
#3A4ED0
oklch(49.2% 0.2 270.4)
-
Step 800
800
#2F41A8
oklch(42.8% 0.166 270.2)
-
Step 900
900
#293885
oklch(37.6% 0.13 270.6)
-
Step 950
950 (this color)
#17214D
oklch(26.7% 0.082 270.3)
#17214D 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) | #07274F | 0.022 |
| Deuteranopia (no green cones) | #00224C | 0.024 |
| Tritanopia (no blue cones) | #002B33 | 0.069 |
| Achromatopsia (no color) | #242424 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17214D
#17214D
oklch(26.7% 0.082 270.3)
- #302400
#302400
oklch(26.7% 0.055 89.9)
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 #17214D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.040
- Marine #042E60 ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.056
- Dark #1B2431 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.059
- Navy Blue #001146 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.065
- Midnight Blue #191970 ΔE 0.065
Use #17214D 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.