#17214B
Closest named color: Oxford Blue (#1B263B). oklch(26.5% 0.079 270.2), rgb(23, 33, 75).
Aa
White text reads best on this color (15.49:1).
About this color
#17214B is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.079 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.037 away. White text reads best on it, at 15.49:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.35:1 |
| White text | 15.49:1 |
Values
| HEX | #17214B |
| RGB | rgb(23, 33, 75) |
| HSL | hsl(228, 53%, 19%) |
| OKLCH | oklch(26.5% 0.079 270.2) |
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 #17214B | 15.49:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #17214B | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #17214B text on white | 15.49:1 | AAA | Lc 102.2 | Preferred for body text |
| #17214B text on black | 1.35:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CCD8FC
oklch(88.5% 0.051 270.8)
-
Step 300
300
#A9BEFE
oklch(80.9% 0.094 270.2)
-
Step 400
400
#7D9AFD
oklch(70.8% 0.149 270)
-
Step 500
500
#5F7CFB
oklch(63% 0.191 270.4)
-
Step 600
600
#4861EA
oklch(55.5% 0.208 270.3)
-
Step 700
700
#3A4FCC
oklch(49% 0.194 270.2)
-
Step 800
800
#3042A5
oklch(42.7% 0.16 270.3)
-
Step 900
900
#293982
oklch(37.6% 0.124 270.1)
-
Step 950
950 (this color)
#17214B
oklch(26.5% 0.079 270.2)
#17214B 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) | #0A274D | 0.021 |
| Deuteranopia (no green cones) | #01224A | 0.023 |
| Tritanopia (no blue cones) | #002B32 | 0.068 |
| Achromatopsia (no color) | #242424 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17214B
#17214B
oklch(26.5% 0.079 270.2)
- #2F2400
#2F2400
oklch(26.6% 0.054 91.5)
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 #17214B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.037
- Marine #042E60 ΔE 0.051
- Dark #1B2431 ΔE 0.052
- Dark Indigo #1F0954 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.058
- Navy Blue #001146 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.066
Use #17214B 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.