#2147AF
Closest named color: Sapphire (#2138AB). oklch(43.9% 0.172 264.8), rgb(33, 71, 175).
Aa
White text reads best on this color (8.12:1).
About this color
#2147AF is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.172 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.036 away. White text reads best on it, at 8.12:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #2147AF |
| RGB | rgb(33, 71, 175) |
| HSL | hsl(224, 68%, 41%) |
| OKLCH | oklch(43.9% 0.172 264.8) |
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 #2147AF | 8.12:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #2147AF | 2.58:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #2147AF text on white | 8.12:1 | AAA | Lc 87.5 | Fine for body text |
| #2147AF text on black | 2.58:1 | Fails | Lc -14.6 | 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 800.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C7D9FF
oklch(88.4% 0.056 265.2)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#719DFF
oklch(70.8% 0.152 264.6)
-
Step 500
500
#4C80FF
oklch(63.2% 0.197 264.6)
-
Step 600
600
#2F63F3
oklch(55.6% 0.223 264.7)
-
Step 700
700
#2351D4
oklch(49.2% 0.207 264.7)
-
Step 800
800 (this color)
#2147AF
oklch(43.9% 0.172 264.8)
-
Step 900
900
#1D3A87
oklch(37.6% 0.134 264.9)
-
Step 950
950
#11234F
oklch(27% 0.084 264.6)
#2147AF 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) | #0056B2 | 0.038 |
| Deuteranopia (no green cones) | #0049AD | 0.017 |
| Tritanopia (no blue cones) | #006174 | 0.132 |
| Achromatopsia (no color) | #505050 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2147AF
#2147AF
oklch(43.9% 0.172 264.8)
- #694D00
#694D00
oklch(43.8% 0.09 84.4)
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 #2147AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.036
- Blue Blue #2242C7 ΔE 0.040
- Cobalt #1E488F ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.059
- Blueberry #464196 ΔE 0.059
- Dusk Blue #26538D ΔE 0.067
- Blue With A Hint Of Purple #533CC6 ΔE 0.074
- Dark Slate Blue #483D8B ΔE 0.076
Use #2147AF 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.