#2347AA
Closest named color: Sapphire (#2138AB). oklch(43.6% 0.164 265), rgb(35, 71, 170).
Aa
White text reads best on this color (8.22:1).
About this color
#2347AA is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.164 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 8.22:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #2347AA |
| RGB | rgb(35, 71, 170) |
| HSL | hsl(224, 66%, 40%) |
| OKLCH | oklch(43.6% 0.164 265) |
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 #2347AA | 8.22:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #2347AA | 2.55:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #2347AA text on white | 8.22:1 | AAA | Lc 87.9 | Fine for body text |
| #2347AA text on black | 2.55:1 | Fails | Lc -14.3 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8D9FD
oklch(88.4% 0.053 265.3)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#719CFF
oklch(70.6% 0.153 265)
-
Step 500
500
#4D80FE
oklch(63.1% 0.196 264.8)
-
Step 600
600
#3365EE
oklch(55.7% 0.214 264.9)
-
Step 700
700
#2752CF
oklch(49% 0.199 265.1)
-
Step 800
800 (this color)
#2347AA
oklch(43.6% 0.164 265)
-
Step 900
900
#1F3B84
oklch(37.7% 0.128 265)
-
Step 950
950
#12234E
oklch(26.9% 0.082 265.1)
#2347AA 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) | #0055AD | 0.036 |
| Deuteranopia (no green cones) | #0049A8 | 0.019 |
| Tritanopia (no blue cones) | #006071 | 0.129 |
| Achromatopsia (no color) | #4F4F4F | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2347AA
#2347AA
oklch(43.6% 0.164 265)
- #684C00
#684C00
oklch(43.5% 0.089 84.2)
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 #2347AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.036
- Cobalt #1E488F ΔE 0.045
- Blue Blue #2242C7 ΔE 0.047
- Blueberry #464196 ΔE 0.053
- Dusk Blue #26538D ΔE 0.061
- Majorelle Blue #3F37C9 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.069
- Light Navy #155084 ΔE 0.070
Use #2347AA 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.